How to choose the right drill bit

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Drill bits For drilling holes smaller than 1/2 in.

Type of power tool Material to drill Thickness Required drill bit Why? of material(2) SST+ Strongest drill bit Stub Round shank Won’t break if you get stuck < 1/2” SST+ Stub Quick Best grip on your powertool Tooling | Tooling Mild steel shank 135° Allow you to drill fast & precise

Press drill, > 1/2” SST+ Jobber’s Most effective in thick material Magnetic drilling unit, round shank 135° Won’t break if you get stuck Automated drilling machine < 1/2” SST+ Stub length Strongest drill bit, won’t break round 135° if you get stuck High tensile steel Most effective in thick material > 1/2” SST+ Jobber’s round shank 135° Won’t break if you get stuck Best grip for hand held tools < 1/2” SST Quick shank 118° Allow you to drill in a hard to reach area, fast & precise Mild steel Most effective in thick material > 1/2” SST+ Jobber’s Round shank 135° Won’t break if you get stuck Cordless drill SST Quick shank 118° Best grip for hand held tools < 1/2” Allow you to drill in a hard to High tensile steel reach area, fast & precise Most effective in thick material > 1/2” SST+ Jobber’s Round shank 135° Won’t break if you get stuck

(1) (2) (1) TechTech tip! tip! Tech tip!(2) Tech tip! For Fordrilling drilling bigger bigger holes, use a reduced shank or a Prentice drillYou bit shouldn’t drill deeper You shouldn't drill deeper than 1/2 of the drill bit’s fluting length to have the best removal rate use a reduced shank or a than 1/2 of the drill bit’s fluting Prentice drill bit length to have the best drilling performance

Self-centering split-point at 118° Produce minimal burr in sheet metal All Walter’s drill bits have:

ϐϐState of the art self-centering split point that can allow you to drill directly to the size needed without any pre-drilling ϐϐHeavy-duty, fully ground body construction ϐϐHighest performance due to HSS with Self-centering split-point at 135° cobalt blend ϐϐSpecial bronze SST heat and surface treatment Long fluting for thick material ϐϐHigh flow spiral design for the fastest removal rate Special cutting lips Jobber’s length 3 Short fluting for on fluting for a thin material faster removal 3 Stronger than a (all models) jobber’s length Tech tip! Stub length Three major factors for the best and most efficient drilling: 3 Round shank 3 Won’t break • Use the correct feed rate if drill bit gets stuck 3 Quick shank with 6 flats • Use the correct RPM speed 3 Designed to avoid • Use Walter’s COOLCUT or slipping on drill’s jaws COOLCUT stick lubricant 3 Works precisely 3 Fits in any drill’s jaws

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