Hand Tools
Hand Tools
This domain examines hand-tool selection, inspection, safe use and maintenance in body repair. Questions often describe a fastener or access problem and ask for the correct tool and technique.
Core rules
- Use the correct size and type: six-point sockets for damaged or high-torque fasteners, twelve-point for accessible undamaged heads, and flare-nut wrenches on brake and fuel lines.
- Pull or push a wrench with a controlled stance; avoid cheater bars that overload the tool and fastener.
- Keep screwdriver tips matched to the slot; a worn tip cam-outs and damages trim.
- Inspect hammers for loose heads, chisels for mushroomed heads, and cutters for cracks. Dress or replace damaged tools.
- Use impact-rated sockets on impact guns; chrome hand sockets can shatter.
- Clean and oil tools, and store body hammers and dollies so faces are not nicked.
Worked example
A rusted suspension bolt has a rounded head. Reasoning: start with penetrating oil and a six-point impact socket that grips the flats; use a breaker bar with a steady pull, not a length of pipe. If it still slips, use a nut splitter or heat with fire precautions rather than an open-end wrench that contacts only two corners.
Traps
Using an adjustable wrench on a brake line; putting a pipe on a ratchet; using a chrome socket on an impact gun; striking a hardened punch with a hammer that has a loose head; using a screwdriver as a chisel.
Key points
Match socket type and drive to the fastener and torque. Flare-nut wrenches protect line fittings. Inspect for cracks, looseness and mushroomed heads. Impact sockets are for impact tools. Controlled force beats cheater bars.