Unit 11

1. Unit 11 Sawing and Cutting Tools Handsaws • Sawing Technique • Use and Care of Handsaws • Other Cutting Tools

2. Although the basic construction of handsaws is similar, many differences are found in the length and shape of the blade and the number and shape of the teeth.

3. High-quality saws have a taper-ground blade. The blade is thinner along its back than at its cutting edge.

4. An 8-point saw has larger teeth and fewer teeth per inch than an 11-point saw.

5. The knife-shaped teeth of a crosscut saw are effective for cutting across the grain.

6. Compass saws are used to cut curves or internal openings.

7. Backsaws may be used with a miter box to cut accurate angled or straight cuts in finish work.

8. Dovetail saws are used to make fine cuts in molding or other small trim materials.

9. Coping saws are used to make fine, irregular cuts in thin materials.

10. The chisel‑shaped teeth of ripsaws are effective for cutting with the grain.

11. The proper sawing technique results in accurate cuts while minimizing accidents.

12. Hacksaws are used to cut metals.

13. Nail saws are used to cut nails so that framing members can be more easily separated.

14. Wood chisels include flooring chisels and butt chisels. A flooring chisel is used for rough work. A butt chisel is used to mortise lumber for door hinges and other types of finish hardware.

15. When using a wood chisel, keep both hands behind the cutting action of the chisel, and cut away from the body.

16. Cold chisels are used to cut metals and chip concrete. Cold chisel heads must be properly ground to prevent chips from becoming detached from a mushroomed head.

17. Utility knives are used to cut materials such as gypsum board, fiberboard, and insulation.

18. Aviation snips are used to cut metal framing members.

19. Side-cutting pliers are commonly used for twisting or cutting wires and pulling or cutting nails.