Tools and Equipment
What the domain tests
Tools and Equipment tests identification, safe use, maintenance and selection of hand and power tools, measuring and levelling equipment, and PPE.
Core rules
- Measuring tools include steel tape, try square, spirit level, plumb bob and line level. Check them for damage before use.
- Saw selection depends on the material and cut: crosscut saws cut across the grain; rip saws cut along it.
- Power tools must have intact leads, guards and handles. Use an RCD where required and never remove guards.
- Keep cutting edges sharp; clean and oil tools; store them dry.
- Ladders should be set at about 1 in 4 and secured; do not overreach.
Worked example
A 2 m spirit level shows the bubble 4 mm off centre. Error per metre = 4/2 = 2 mm/m. Over a 6 m wall the possible error is 12 mm, which is unacceptable. Reverse the level to check whether the error is in the tool or the work. Reasoning: level error accumulates with length.
Traps
- Using a wood saw on metal or masonry.
- Removing a power-tool guard.
- Checking a level in one direction only.
- Overreaching from a ladder.
- Storing damp tools without cleaning.