CIRCULAR SAW

 Many years ago a company named Skil made tool history by introducing the portable saw.  The saw size is measured by the diameter of the circular blade; ranging from 3 3/8” to 16 ¼”.The most popular size is 7 ¼”.  Weight varies from 4 to 12 pounds.  In the handle of the saw is located a trigger switch that will start and stop the saw.  The blade speed is given in rpms and the teeth of the blade points in the direction of the rotation.  Parts of saw. HOW TO USE A CIRCULAR SAW. [Demonstrate with our Dewalt saw]

 Always wear the appropriate personal protective equipment.  Properly secure the material that is to be cut.  Mark your to be cut line with a pencil or marking tool.  Place the front edge of the base plate on the work so the guide notch is in line with your mark.  Adjust the blade to the depth of the wood that you are cutting.  Start the saw- after the blade has revved up to full speed, proceed to cut.  While cutting, grip the saw handles firmly with two hands.  As you get to the end of the cut release the saw’s trigger.  Wait till the saw blade stops rotating before setting down the saw.  Do not oil the safety guards on the saw. [dust will cause build up and make the guard to stick]

SAFETY FOR A CIRCULAR SAW.

 Always wear your PPE [cover and show type of safety glasses and table clamps]  Check to see that the blade is tight  Check to see that the blade guard is working properly.  Before you cut , exam the area that you are about to cut [ex. wires, water or gas pipes]  Keep both hands on the saw when cutting.  Never reach underneath the work while you are cutting.  Always stand to the side of your work.  When cutting small pieces of wood use clamps to secure your material.  Know where your power cord is located when cutting.  Most important maintenance is the inspections of your lower blade guard.  Always disconnect the power before you do any maintenance or change blades.  Do not oil or grease the guards, this will cause sawdust to stick and build up.  Always keep blades clean and sharp to reduce friction and kick back.

RECIPROCATING SAW

 Both the saber and reciprocating saw are called a sawzall.  The reciprocating saw is designed for more heavy –duty jobs than a saber saw.  It comes in single speed, two speed, and variable speed models.  Low speed is best for metal work, and high speed is best for wood or soft materials. HOW TO USE A RECIPROCATING SAW

 Wear appropriate PPE. [cover and show type of safety glasses and table clamps]  Always clamp your work securely to avoid vibration.  Set your saw to the desired speed.  Grip the saw with both hands, and place the base plate firmly against the work you are trying to cut.  Squeeze the trigger. SAFETY OF A RECIPROCATING SAW

 Always wear appropriate PPE.  Before cutting examine area for electrical, gas or water lines.  Always disconnect the power before any maintenance or changing blades.  Inspect the saw for loose blade, damage cords, or faulty guards.

 SUMMARY  Wear appropriate PPE.  Always clamp your work securely to avoid vibration.  Set your saw to the desired speed.  Grip the saw with both hands, and place the base plate firmly against the work you are trying to cut.  Squeeze the trigger.