name and explain three types of handsaws

• TIMBER AND LOG SAW....Perfect for timber framing, log building, or any heavy cutting job. Use the starting teeth to introduce a kerf, then the 3 TPI main teeth, which cut on both the push and pull stroke, to quickly slice through the toughest jobs....

HACKSAW.....

Hacksaws are usually used for cutting metal. however they are also very handy for cutting dowels and thin wood strips.

 

The blades are easily interchangable, the thinner the material the finer the blade should be, a rule of thumb is that three teeth should be on the material at all times.

 

Hold the material being cut in a vise positioned so that the cut is close to the edge of the jaws, use slow strokes (60 per minute) with not too much downward pressure.

 

If a blade is changed in the middle of a cut reverse the material and cut from the other side toward the orginal cut. A new blade will have more set than a used blade and will be ruined if cut is continued............

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Handsaws are available in many sizes and configurations, a good general purpose saw is 26" long and has 8 teeth per inch. Crosscut saws (to cut across the grain) have teeth with a negative rake, ripping saws (to cut in the direction of the grain) have a zero rake