Tools, Equipment and Machinery for Carpentry
This section examines whether you can select, use, maintain, and store hand tools and power tools safely and accurately. Questions often cover saw tooth geometry, blade selection, sharpening, machine guards, kickback, drilling, routing, and the difference between cross-cutting and ripping.
Core rules
- A cross-cut saw has smaller teeth and is for cutting across the grain; a rip saw has larger, chisel-like teeth for cutting along the grain.
- Keep blades sharp and set. A blunt blade increases force, heat, and kickback risk.
- On circular saws, set blade depth so teeth just clear the timber; stand to one side of the blade line; never remove the guard.
- Use the right blade for the job: a low tooth count for fast ripping, a higher tooth count for clean cross-cuts and finished work.
- Secure the workpiece. Use clamps or a bench hook, not your hand, near the cut line.
- Maintain tools: oil metal parts, remove resin, check cords and plugs, and store blades in covers.
Worked example
A carpenter must remove 2 mm from the edge of a finished door shutter. A circular saw would be fast but risks tear-out and loss of control on a narrow edge. A router with a straight bit and guide gives a controlled cut but may be excessive for 2 mm. A sharp block plane, worked from the ends toward the centre with the grain, gives the finest adjustment. The reasoning: match the tool to the amount of material, the finish required, and the risk of damaging the workpiece.
Traps
- Using a cross-cut saw to rip long boards, causing slow, wandering cuts.
- Removing or wedging open a machine guard.
- Forcing a blunt blade, which overheats and can kick back.
- Using a masonry bit for timber or a wood bit for concrete.