Metal LnIseis, Punches, and Drift Pins

AN AMERICAN NATIONAL STANDARD m Dale ol Iss~ance:September 15, 2005

This Standard wilt be revised when the Society approves Ihe issuance of a new edition. There wilt be no addenda issued to this edit~on.

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Copyright 0 2W1 by THF AMERICAN SOCIFY OF MECHANICAL ENGINEERS All rightr rfrerved Prlnted in U.S.A.

标准下载网(www.bzxzw.com) CONTf NTS

Forcword ...... IV Committee Rostcr ...... Y Correspondence With thc B107 Con~rnittee ...... vi 1 Scope ...... 1 2 Classifications ...... 1 3 References ...... 1 4 Definitions ...... I

5 Requirements ...... 3

6 Tests ...... 3 7 Safety Requirements and Limitations of Use ...... 7

Figures 1 Nomenclature for Typ 11 Punches ...... 2 2 Nomenclature for Type 1 Chids ...... 3 3 Nomenclature for Type 11 Handle-Held Punches and Type 111 Drift Pihs ...... 4 4 Nomenclature for Type 1 Handle-Hcld ...... -4 5 Bending Moment Test ...... 1 6 Static Force T-t for Handle-Held Punches ...... 8 7 Static Force Test for Handle-Held Chisels ...... 8

Tables 1 Impact Test Parameters .Type I Chisels ...... 6 2 Impact Tet Parametes .Type I1 Punches ...... 6 7 3 Impact Test Parameters .Type LII Drift Pins ...... FOREWORD

The American Natinnal Standards Committee 8107, Sclcket and Dnk-a, under spon- wrship of The American Society of Mechanical Enpeers, was reorganizrrl as an ASME Stan- dards Committee, and its title was changed to Hand Tmls and Accessoric~.In 196, the 8209 Commlttcc, rvh~chhad published an earlier version ot this Standard as B209.1 dnd 8209.2, merged with thr 6107 Committee, and the B107 Committee sope was expanded to rnclude safety con- siderations. Membcrs of the Hand Twls Institute Striking and Struck Standards Committee have been major contributors to the development of the Standard in the~rcon~n~ittee rvork, knowledge of the products, and active efforts m the promotion of the adupon of the Standard.

The purposes of this Standard are to define essential safety cons~derahonsspecificallv . appll-.. cable to Metal Chisels, Punchcs, and Drift Pins, specify test methods to evaluate~performancerc- lahng to the dcfincd safety considerations, and indicate limitahons of safe use. A principal change in the ed~tionof the Standard is the allowance of any matcrial that meek the performance and safety requirements specified. Further, this Standard includes material pre- vlousiy included in Bln7.47-1998and is intended to supersede that document. The f~rmatof hsStandard is in accordancc w~th77lc ASME Codes arrd Sta~rdnrd::Writi~lg Guide 2000. Requcsts for mterpretations, and suggestiom lor the improvement of this Standard, should be addressed to The American kiety of Mechanical Enpeen, Secretary, B107 Committee, Three Park Avenue, New York, NY 10011+5490. The requirements of th Standard becomr: effective at the time of publicahon. ASME 8107.48- 2005 was approved as an American National Standard on March 11, 2035

标准下载网(www.bzxzw.com) ASME B107 STANDARDS COMMITTEE Hand Tools and Accessories uhe following is the roster of the Committee al the l~meof approual of thlr Standard.)

OFFICERS

G. E. Olsan, Choir W. T. Papc. Yice Choir 1. H. Karian, Secretary

COMMIllEE PERSOHNEL

J. D. Davidwn. Sears. Roebuck and Co. p. A ksmaraik Danaher Toot Group 1.5. Fmte. Trade AsSo~~atlonManagement, Inc. A Gwg. Slanley Works R, rl Goldman II, Klein Tools. Inc. A Herskovih, Consultant J. H. Kan'an, The American Society of Mechanical Eng~neers H. Kirnball Naval Air Warfare Center D. 5. McKiltrick. Western Corp. 6. E. Obn. Gene Olson Engineering Consultanr. Lld W. T. Pagac, Snap-on Tool5 D. M. Eggert. Alternote. Snapon Tools J. M. Ster. General Services Administration L W. Fahlstrom. Alternote. General Services Adminrslratlon

SUBCOMMITTEE 4 - STRIKING AND STRUCK

6. E. Olson, Gene Olson Engineering Consultant. Ltd. 1. D. Paidson, Sears, Roebuck and Co B. M. Hotning. Snap-on Tools W. T. Pagac. Snap-on TOOIS CORRESPONDENCE WITH THE B107 COMMITTEE

General. AS-ME Codes are developed and maintained with the intent to represent thc

Proposing Revisions. Revisions arc made periodicaIly tn the Code to irkcorporatechanges, rvhlch appcar net-sary or dejuable, as dern~nshatedby thc experience gaincrf from the application of the Code. Approved revisions will be published per~odically. The Cornmittep welcnrne propwls for revisions to this Code. Such proposals should be as spcc~t~cas possible, citing the paragraph number{s), the propmed $cording. and a dcw~ledde- scription of the reasons for the proposal, including any pertinent da-urnentation. Interpretations. Upon requ-t, the B1@7 Committee will render an intcrpretation of any re quirement of the Code. interpretations can only be rendered in response to a written request sent to the kretary of the 5107 Standards Committee. The rquest for interprctahon should be clear and unambiguous. It is further recommended that the inquirer submit his request in the following tnrmat Subject: Cite the applicable paragraph nurnberls) and a concise description. Edition: Cite the applicable cdttion of the Codc for which thc mtcrpretation 15 bc~ng requested. Question: Phase the question as a reyu-t tor an interpretahon of a spccihc require- ment suitable for general understanding and use, not as a request tor an ap- proval of a proprietary desgn or situation The inquirer ma): also include any plans or drawings, which are necessary to explain the question; however, they should not contain ~roprietarynames or infornlation. Rcquesb that are not in this format will be rewritten by the Cornmitter prior to being answered, whtch may inadvertcntlv change the intcnt of the origtnal request. ASME procedures provide for reconsideration of any interpretation when or ~f additional in- formation that might affect an interpretation is available. Further, perwns aggricvrd bj- ~nin- terpretation may appeal to the cognizant ASME Comm~ttw.ASME dws not "approve." "ccrhfy," "rate," or "endorse" any item, construction, proprietary det-ice, or acttrity. Attending Committee Meetings. The I3107 Standards Cornmittct= holds meetings or telephonr conferences, which are open to the public. Pcrwnt; wishing to attend any meeting or telephone conference should contact the Secretary of the 8107 Standard. Committee or cheik our Web site at htp.//www.asme.urg/cldes/.

标准下载网(www.bzxzw.com) METAL CHISELS, PUNCHES, AND DRIFT PINS

1 SCOPE (c) Class 3 Center- used fvr markmg by in- dentation to start drills in metal and other materials Thls Standard pruv~desperformance and safety re- td) Class 4 Dr~ftor Lining-up: punch used for align- quirements for handheld and handled metal chisels. mg and sizing holes in metal and other materials punches. and dnft pins. Chisels are intended specifically (E) Clash 5 ['in: punch used for dr~vingand remo\,ing for use in cuttmg and shaping metal objects. Punches such things as pins and kcys after mitiai movement by and drift pxns arc mtended spec~f~caltyfor usc in mdrk- a starting p~nih ing metal, driving and removing such things as prns md Ifl Class 6 Prick: punch used for marhg by indcn- rivets, and aligning hdrs Ln different sections nf matc- tation, as in layout work, and piercing holes m light- nal. Pr~wer-drivenchiwls, punches, and drift pm are gage metal and other matcrials excluded horn this Standard. lhis Standard is intendcd igJ Class 7 Round handlc-hcld punch for drifting to serve & a guide in selecting, testing. .md using the holes, aligning, and drifting and drivlng such things as hand tmls covered. It is not the pur~owof this Stan- plns (a.k.a Blacksmith's Round) dard to spec15the details of manufacturing. Inclusion (h) Class P Starting: punch used for loosening suk of dimensional data in this Standard does not mcan that things as frozen pins and keys all products described herein arc stock production slzes. (i) Type 111 Dr~ftPins: pin uscd for alipmg and S~Z- Cunsumers should consult with manufacturers con- ing holes in metal and other matcrials ccmir,g lists of stmk production sizes. This Standard may bc used as a guide by state au- thonties or other regulatory bodies in thc formulation 3 REFEREHCES of laws or regulahom. tt is also intended for voluntary The following is a list of publicahon5 referenced in u- by establishrnrn~that manufacture the tools co\'- this Standard. Unless a specific editinn 1% reicrencd, the crcd- latest available cdlhun should bc used. This Standard is also mean! sen'c a gwde in to as de- ANSI 287.1, Practice for acupational and Educahnn~l veloping manuals and posters for training personnel to Eye and Face Protectiol~ work safely ANSI W3.4, Product Safety SIPS and Labels Publ~sher: American Natmnal Standards Institute 2 CLASSlFlCATlOHS (ANSI),25 West 13rd Street, New Yr)rk, NY 10036 ASTM E 18, Standard Tet Methods for Rm~kwcllHard- 2.1 Type I Chisels ness and Rockrr'rll Superficiat Hardrrrrs of Metallic (a; Class I Cape: for cutting grmves and keyways Materials (b) Class 2 Cold. for general-yurpou cutting and Publisher: American Society for Te5t1ng and hlaterlals shaping (ASTM), 100 Barr Harbor Dr~l-r,\i1t.>t Conshohocbrr~, (c) Class 3 Cvncave Splitting. for 5plitt)ng bushing%, PA 1947,R-ZsSq mufflers, and tallpl~ Guide to Hand Tools - Select~un,Safet!- Tips, I'rfiper fd) Class 4 D~amondPoint: for cuthng V-grcm c5, UI- Use, and Care sidc corners, and hnles Publisher: Hand Trw1.s Instinlte (HTI), 23 North Brt>ad- ic71 Class 5 Half Round: Inr cutting gruoves via?, Tarrytown, Nj 10591 (!! Class fi Blacksmith's Cnld: handle-held cold for gencml-purpow cutting and shap~ng

2.2 Type II Punches Scc Figs. 3 through 4 as applicable hwl: conical portion crf the punch adjacent to thc po~nt tnl Class 1 Backinggut: handlc-held punch for bdrk- end exttmding to the taper or the angular porh~nof thc ing out and driving such things as rlvcts and pins (3.k a chisel adjacent to the cutbng edge extendmg to the tap Blacksm)th's Eacking-out) (b) Class 2 Bearing Race: punch used ;lor rernoring body straight portion of the punch or chisel between the races from bcanngs cham1er ar,J tapcr or the tapers of the drift p~n.

1 METAL CVISECS. PUNCHES. AND DRlFl PIHS

Chamfer Struck Equ~valent radius \-

BOdyybJRounded head

Equivalent Head Design

bo\nt end

One prece TWO~ieces Type II T~peu Type II T~peII Type II Class 4 Cla- 5 Class 8 Class 3 Clau 2

Fig. 1 Nomenclature for Type II Punches

dmnqt7. angled flat surface or equivalent radius Setween hildle porhnn protruding trom the pmch ilr chi-wl the struck face and body of the punch or chtsel encir. bod! by whch the is held facc. cling thc penmetcr of the struck h~~rdufis.condihan of the tnol rcsultlng from heat trcJt- cuHlrl~edge: the edge formed by the bevel dlrectlv op- mcnt. posite thc struck face. pirt: straight cylindr~cal*ction of the punch bewecn the eq~tiilalcntrin tl;6 Standard, the word shall mean aIter- polnt and taper or body native an design< or fcatures that will provide equal de- 1'01t1t end: formed end d~rectlyoppos~te thc struck facc gree of safety. of the punch. or in of eye: an opening aperturc Iwated the body thr point sire diameter of the polnt end or the d~ameterat or 1n!0 a is punch chisel which handle inwrted. hebevel/taper ~nterscchun by hnndlreld cliixl. a chisel designed to be held ~tsbody. ro~t~~dL.iJhod an cqulvalent dmgn for the struck face im~lriheleldp~rrrch: a punch designed to be h~ldby its body. and chamfer portion ot the punch or chid.

标准下载网(www.bzxzw.com) METAL CHISEL5, PUNCHES, AND DRIFT PINS

I ~esser Upset head ,Struck face n Taper

Rounded head

Equivalent Hmad Omsign

Cuning edge Am,Cl- 2

TypeIClsrs1 TypeIClass4 TypcIClas~5 Type 1 Clw3

Fig. 2 Nomenclature for Type I Chisels

tml that is intended to promote safety. The ilIustratiom shown herein are descriph~eand shll and should: mandatory requirements of this Stan- nonrcstrictiPc and not intended to preclude manu- dard are characterized by the word "shall." If a pro\+ facture chisels, punches, or driftpins that othcwisc sion is of an advisory nature, ~t is indicated by the word bvithhis standard, "should" or 15 stated as a rccomrncndation.

5trlick (RCC. purt1011of the punch or chisel exclusri~eof 5.1 Design the chain fer and body, d~rcctIyopposite the point end; the extreme end portion5 of the drift pin exclusive of the Metal chisels, punch=, and drift pins shall pass appli- bwly md taprs cable tests m para. 6. All metal chiwls, punches, drift pins, edges, Inl~t-r:portion of the punch or chisel between the body and handles shall be free of nonfunctional sharp ad and bevel or pomt cnd with a gradually reducing cross- points, surface roughness that could mflict personal secti~nalarea: thc portion of the drift pin between the inju~to he user when handing the tool. bd:, and struck face with a gradually reducing cross- 5.1.1 TypelChisels. Chiseisshallhareamttingedge slrhonal area at one end for cutting. shaping. and removing metal ~fter rrpsrt hend: portion of thc punch or chisel body having than the cutting edge itself, such as cast iron,wrought iron, an enlarged cross-wctional area at the struck end of the steel, bronze, copper, and the like, and shall have a struck tml, including and underlying the struck facc. face on the opposite end to be struck by a hamrncr of the MElAL CHISELS. PUHCHES. AND DRIFT PINS

Chamfer Iace 7- Handle FETaper

Type II Class 7

Typt II Class 1

Taper, ,Body ,Taper \ #' i' 1- Struck face Struck face47

Fig. 3 Nomenclature for Type I1 Handie-Held Punches and Type III Drift Pins appmpriatc type and sue. The appropriate shall Ib) The 5truck fare of all rlhiwls shall have a chamfer have a sh!ung fact approximately 0.375 in. larger in di- of approx~niately4 5 dcg or equvalent radius all around ameterthanthesrmckfaceofthe&I.Varioustypical thepenmeter,~r~ithth,clle~arw1dh(seeFig.2)eyualto style of chisels are show^ in Figs. 2 and 4. approxlmntrly on~tenththe bdy st~ksue. For ek- la! The struck face of all chisels shall have a convex ample, if thc body stock size equals 1 In., then thc leswr or flat 5urfdcc chamfer width will cqual apprakirnatrly 0.1 in.

Handle

F' F'

Taper

Type I Class 6

Fig. 4 Nomenclature for Type l Handle-Held Chisels

标准下载网(www.bzxzw.com) METAL CHISELS, PUNCHES, AND DRIFT PINS ASME 8107.48-2005

tcl Handles may be of an)- design and ?hall bc in- other conditions that r\-ould adversely aitcct the per- scrtcd sccurcly into the chisel and permit the rhwI to formance or safcty of the chiscl, punch, or drift pin be held over the work. Handles shall withstand the tcst specified in para. 6.4. td) .411 chisels and handles shall be frw of nonfunc- tional sharp edges, points, and surface roughness that All chisels, punches, and drift pins shall bc marked could advcrselv affcct pcrformmcc or satety. in a plain and permanent manncr with the mnnufac- turer's name or a trademark of such known character 5.1.2 Type ll Punches. Punch~sshall have a point that the source of manufacture shall be readily deter- end for marking metal, drivmg mil removing such mined. All WE. shall also be marked with nomrnal size. thmgs as pins and r~vets,and al~gningholcs in diffcr- Marking shall be as permanent as the normal life ex- cnt scctlons of mater~aland a 5trucL; face on the oppo- pectancy of the tool tn which it is applied (providing the site end to bc shuck by a hammer ot the appropriate marked surface has not been subjected to a fretting or type and suc The appropriate hmrner shall have a abrading action) and h capable of withstanding the strihg face approxima tcly O 375 UI larger in diameter cleaning procedures normally experienced during its in- thnn the struck fare of the pun&. Various typical styles tended use. of ~unc11t.sarc shown ut F1g5. 1 and 3 Each punch and chisel shall be stamped, labeled, or 10) The struck facc ot all Typ I1 punhes shall have othenvise marked, size permitting, with the safety a conxex or flat surface message given below. Handled chisels and punches Ibj lllr struck face of all Type II punches shall have shall be stamped on the body, and the same safety a chamfer of npproxlmately 45 deg or equivalent radius message or equivalent shall appear on all replacement all around the penmeter, with the Ityscr w~dth(see Fig handles. 1) equal to appro xi mat el^ onc-tenth thc body stock size Fur example, iI the body stock sue equals I rn , then the WARNING lesser chamfer width w~llequal approximately 0 1 in. WEAR SAFETY GOGGLES (c) Type 11, Class 1 and Type II, Class 7 handles may USER AND BYSTANDER be of any dsign and shall be ~nsertd-rely into the punch and perm~tthe punch to be held over the work Th~ssafety message shall be hated In a position that without exposing the user to personal injury. Handles will not interfere with the quality or perfomsncr of shall withstand the test specified in para. 6.4. the tool. Thc principles givcn in ANSI W35 4 shall be 5.1.3 Type Ill Drift Pins. Type IU drift pins shallta- used as a guide for alternative, equivalent mcthoiis ot per tn a cnnvex struck face at each cnd to be shuck by label~ng a hammer of the appropriate size to align holm in metal. The appropriate hammer shall have a striking face not less than 0.375 in. larger in diameter than the struck face 6 TESTS of thc pin. Many test5 requ~redhrreln are mherrntly huardnus, and adequate salepards fur prrsvnnel and properh 5.2 Materials shall be employed In condust~ngsuch tcsts The materials used in Ihc manufacture of punches, Separate (new) qrn~le~shall be used for each o! thew chisels, and dnft pins shall be such as to produce tools tests. Fa~lurrto mwt the requ~rementsof any onc ot conforming to this Standard. these tests ind~catesthat thc ch~scls,punchcs, or dnfi pmdn not cvni~11;v, ith th~rStandard 5.3 Mechanical Properties 5.3.1 All Type I1 punches shall have a hardness of 6.1 Hardness 60 48 to HRC or equivalent for a distanceof not less than Hardness detpm,,nation shall be made from the point end. (1.25 in, with ASTM El8 5.3.2 Hardness of the struck face of chisels, punches, and drift pins shalt not excecd 44 HRC or equivalent. 6.2 Impact Test 5.3.3 Chisels shall have a hardness nf 53 HRC tn hO tsts mounhng the subject HRC or equivalent for a distance of not less than 0.E twll ucrt,iallv with cutting dge, point end, or drift In. irorn the cutting edge. pin ?truck face resting against the tcst objcct. For dusels, the te;t object shall be a stwl bar as sp&fid in Table 1. 5.4 Finish For punches and dnft pins, the test nbject shall be a steel Surfaces hall have a rust prcvcntivc trcatmcnt and pld~ot the hardness sp~ifiedin Tables 2 and 3, respec- be eswnfia]]>-frw from PI&,ndulef., burrs, cracks, and tivcly Thc tcst objcct shall rest on a stwl block weighing METAL CHISELS, PUNCHES, AND DRIFT PINS

Table 1 Impact Test Parameters-Type I Chisels

Drop Cutting Drop Heigfrt of Number Test Bar Chisel Edge Wei$l. We@. 01 Class Width. in. Ib in Hits Shape and Material Hardness

co.375 b 1. I. and 3 0.375 to

GENERAL NOTE: For further ~nformal~onabout AlSl designalions, rontarl Iron and Sleel Soriery, A10 Corn. monweatth Drive. Warrendale. PA 150Bb.

Table 2 Impact Test Parameters-Type tl Punches

Nominal Drop Number Ted Hate Punch Point Sire, Drop Hei*t of of Hardness, Class In. [Note (I)] Weight. Ib Weight, in. Hits HRC

1 and 7 318 to ~518 (Batking-out or) ,518 2 7/16 X 15/64 (Bearing race) 112 X 17/64 9/16 X 19/64 518 x 9/16 <3/16 23/16 3132 118 3116 114 5/16 318 1/16 3/32 1is 5132 3116 7132 114 5116 318 6 AH sizes (Prick) 8 [Startind

NOTE: (1) Sizes other than those listed are tesled 10lh~ nexr smaller pain1 size

标准下载网(www.bzxzw.com) MFXAL CHISELS, PUNCHES. AND DRIFT PINS ASME 8107.68.2W5

Table 3 Impact Test point nf the body with thr f~rccacting substanhdly at Parameters -Type II I Drift Pins right anfilm to the axis of tIlc bcd~Thc diameter at the fulcrum shall be approximatcJy trrrict, that of the p~~nsh Orop Test Plate cross-swtion at the point of contact and orlcntcd at r~ght Body Drop Height of of angles to the axis of the pwlih Thc punch rn~~st5hniv Size. in. Weight. Ib Weight, ~n. Hits HRC at lcast 20 deg permment defvrn~ationwjthout irdcture 25-30 (see Fig. 5). 25-30 20 4'50 6.4 Handle Static Force Test 45-50 Handles of assembled chisels and punches shall not break, loown, or othem-ise fail when subjected to a force of 150 Ibf while (nl the ch~selor punch bcdy is irxked securely in the not less than 200 Ib. A test weight having a diamekr not test fixturc w~ththc struck face up and the handle ex- Ies than 0.375 in. larger than the struck face of tht- tml tended In the horizontal plane, and htng tested shall be dropped from the height and lor the (b) the st~hctorce is applied vertically at a point on number of hits spxificd in the appropriate table (Table the handle measumg 20 in. from the top of the tool (scc 1,2, or 3) for the type of twl. Thc tcst weight shall havr Figs h and 7) a striking face hardness of 45 HRC to 60 HRC or equiv- alent and shall be dropped squarely onto the subject tml's struck face. The t-t object shall be moved after each dr~3p 7 SAFETY REQUIREMENTS AND LIMITATIONS of the weight. There shall be no chipping or spalling of OF USE cutting end, or no thc edge, point shck face and crack- tnstructors and employers shall stress proper use and of ing thc chisel, punch, or drift pin as a result of thc tcst safety in the w of stnkig tools and emphasize the nc Normal deformation at either end is permitted.' ccssity to wear, and ensure the use of. safety goggles or equivalent cyc protection. 6.3 Bending Moment Test for Drift or Lining-up Punches The publication Guide to Hmd Tdh-Slechon, Safety Tips, Proper Use, and Care pro\,tdm gu~delines With the punch supported not more than 0.25 in. from for the safe use of thew tools the point end, pivoted on a cylindnial tulcrum that 1s located one-tlurd of the taper length from the point end, a bending rnompnt is appl~edby a static force at the mid- 7.l

Metal punches are special-purpme tm15 designed dnd intended onlv for the uses listed In para. 5.1 2 Thev arc is so a of ' 'The stnking twt *vcrc that d~ pmissiblede- intended onli for marking metal, dA\,mg such thlks as formation, such as dmting of the smdt lace and bding of pin or taper, ran mtiopatdA less %, r*.ou ax.oid pins and rivets, or aligning holcs in dlffermt *honk of this, but it would nu1 pronde the level of mfety &iur~ncedesired. material.

I/, in. max. --Body length

Shank dia. at I I contact point

I I I 41 , I ' Zx shank dia. I ' ,I at contact pornt I I I I I

b- Taper length -Body length-4 Fig. 5 Bending Moment Test ASME 8107.48-2005 METAL CH ISECS, PUNCHES, AND DRIFT PINS

Fig. 6 Static Force Test for Handle-Held Punches

Metal drift pins are special-purpose tools designed Prick, center, pin, backing-out, and round punches and intended only for the uses listed in para. 5.1.3. They shall not be used for prying or wedpg. Pin, prick, and are intended only for aligning holes in different sections center punches shall not be used as starting punches. of material. Prick and center punches shall not be used for driving pins.

When using a pin, round, starting, or backing-out punch, the point end diameter of the punch shall ap- Metal chisels are special-purpose t~lsdesigned and proximate the size of the pin or rivet being driven. intended for the cutting. shaping, and removing of metal

I I

Fig. 7 Static Force Test for Handle-Held Chisels

8

标准下载网(www.bzxzw.com) MnAC CHISELS. PUHCHE5, AND DRIFT PINS ASME 8103.48-2005

sufter than thc cutting edge of the ch~.rlitsclf Such sign of bending, chipping, or cracking of thc po~ntend softer materials irlcludc cast iron, wrought iron, stecl, or the shuck face. bronze, copper, and t!~e like An initla1 cautious blow may be used to ascertain thc relattre hardness of the stuck object with subscqurnt e~arnmstionof the cutting ciigc. To avoid possible eye or othcr bodily injury, chis- E~ccpta4 ~ndicatedin paras. 7.1 2 and 7-13, nn area, cls s.haIl not be used to cut otrlects a5 h,ird or harder than wuhun, or portion of a punch, ct~iscl,or drift pin shall tlic chiscl cutting edge, such as stone or concrete. bc ground, welded, heated b!- reheating, or othenvise altered from the origmal condihon as furnished bv thc mmufacturer.

Chisels shall not be used for prying or wedpng. 7.12 As dulling of the cutting edge or point end wiurs 7.7 hum tool uwgc, it shall be redressed to ~tsnriginat con- ~~iftor ljnmg-up punches and drift arc special- tour only by thc use of a whebtone or hand .' purpose tools intended for aligning hoband shall not be used for driving metal or other hard oblects. 7.13 Any mushrooming of the tool-struck face shall bc promptly redressed to thc original contour by use of a whetstone or hand file.' A hammer should always be used with the striking facc parallel with the struck facc of the chisel, punch,or drift pin. Glancing blows, overstrikes, and understr~krs should be avoided No surface of a chisel, punch, or dnft Handles shall be inspected prior to cach use, and pin shalt be struck othcr thm the struck face. The 5tnk- those damagcd shall be replaced. The handlcs of tools ing tool of the approprtate size shall have a diameter shall k free of splintcts or cracks and kept tight in thc not less than 0.375 in. larger than the struck face of the tool. Replacements shalt withstand the test require punch or drift pin. ments SF-ified in para. 6.4 and be equivalent to thc original handle m she and quality.

Safety goggles, or equivalent eye protection con- '*I5 to ANSI 287.1,shall be by the user and Chiscls and punch- with handles shall not be swung all persons In the immediate area m which any chksel, agatmt the work but rathcr hrld b!, the handle with the punch, or dnft pin is being us~dto avoid possible eye totr[ on the work and struck ;1 hammer of the ap- injury from flying objecb. propnate size (see para. 7.8).

7.10 It 1s ~~rlerstoodthat ~ndustnaluwrs h~thadcwuate faclllt1c5 and properly trained personnel mb): chmtu rcdrcuor reharpen Chsels, punches, and drift pLns be thew twls by ohrmeans u-tthilut altering the rnetallurg~c~lh- prior to cach usc and thew use discontinued at thc flst artemtics of the tmk. 8107 AMERICAN NATIONAL STANDARDS FOR HAND TOOLS

Socket Wrenches. Hand (Inch Series) ...... 3107. l.2M2 Socket Wrenches. Extensions. Adaptors. and Ur~~versalJoints . Power Drive (Impact) [Inch Series) ...... 3107.2.2002 Driving and Spindle Ends for Portable Hand. Impact . Air. and Electric Tools (Percussion Toots Excluded) ...... 0107.4.2005 Socket Wrenches. Hand (Metric Series) ...... A107.5 M.2002 Adjustable Wrenches ...... 0107. @.ZOO3 Handles and Attachments for Hand Socket Wrenches - Inch and Melrrc 5er1es ...... B107.10 M.lPP6 : Diagonal Cutting and End Cutting ...... B107.11.2 W.7 Nutdrivers ...... B107.1 2.IW4 Pliers: Long Nose . Long Reach ...... B107.1 3.2a03 Hand TorqueTools(Mechanical) ...... 0107.lb.ZW4 Flat Tip Screwdrivers ...... BIQ7.1 5.2002 Shears (Metal Cutting. Hand) ...... B107.1bM.1998 (R2W41 Gages. Openings. Reference ...... 8107.17 M. 1997 Pliers: Wire Twister ...... 8107.18~1003 Pliers: Retaining Ring ...... 8t07.19.2006 Pliers: Lineman's . Iron Worker's. Gas. Glass. Fence. and Battery ...... 8107.2 0.1006 Wrench. Crowfwt ...... 8107 21-2005 Electronic Cutters ...... st07 22M-1998 tR2KiA) Pliers: Multiple Position. Adjustable ...... 81(17.2 3.2004 Locking Pliers ...... 8107.21.2002 Pliers: Performance Test Methods ...... 8107 25. 2002 Pliers: Multiple Position. Electrical Connector ...... 8107.2 7.1003 Electronic Torque Instruments ...... 8 107.28.2W5 Electronic Tester. Hand Torque Tools ...... 4107.2 9.1005 Cross l7p Screwdrivers ...... 6107 30-2W2 Screwdrivers. Cross Tip Gaging ...... BlO7.3lM.lg97 Socket Wrenches. Impact (Metric Series) ...... -8107 33M-2002 Socket Wrenches for Spark Plugs ...... 4107.3 4.2W3 Pliers: Locking. . and Tubing Pinch-Off ...... B107.36.2002 Pliers: Wire CutterslStrippers ...... 4107 37-IN3 Electronic Pliers ...... 0107.38M.l998 Nail : Safety Requirements ...... 0107.LI.2WL Hatchets: Safety Requirements ...... 0107.41M.199: (R20361 Wood-Splitting Wedges ...... B107 43-2002 Glaziers' Chisels and Wood Chiwls ...... 0107 44-2002 Ripping Chisels and Hmring/Electricians' Chisels ...... 0107 45. 2032 Stud . Screw. and Pipe Extractors: Safety Requireme~l~...... B 107 46 203 Metal Chisels. Punches. and Driff Pins ...... 8107 A8-2W5 Nailsets ...... Bla7ig-2Wb Brick Chisels and Brick Sets: Safety Requiremenlr, ...... B107.50 M.1993 Slar Drills: Salety Requiremenrs ...... B107.5 1.2001 Marl-Puller Bars . Safely Requirem~nrs ...... B107 52M-1998 Ball Peen Hammers: Safety Requirements ...... B107.5 3.2Wta Heavy Striking Tools: 5af~lyReqdirements ...... B107.5 6.2001 her: Saf~lyRequirements ...... 3107.55.2002 Body Repair Hammers and Dolly Blocks Safety Requirements ...... 8107.56.1999 Bricklayers' Hamrnerr acd Prospecting Picks: Safety Requirements ...... 8107.57.2001 Riveting . Staltng. and Tinncr'r 5ett1n3 Hammers: Safety Requirements ...... B107 58M.1998 Sluggrng and Slr1lr:ng Wrencher ...... 3107.5 9.2002 Pry Bars ...... 3107.60200L Wr~nther ...... B107.lC4~2002

The K5ME Publications Catalog shows o complete list of all the Standards published by the Society. For o cumpl~mentarycorolog. or the btest ~nformarianabout our publicorions. call 1-800-THE-ASME [I.BW.B43.1763) .

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