Hacksaws

The hacksaw is used by the body repair worker toadvantage where a clean,neat cut is required, usually where two pieces have to be cut to form a welded joint,and is ideal for cutting irregular- shaped panels which could not be cut with snips or chisel. There are many different types of hacksaws, but in general they consist of a fixed or adjustable frame fitted with a renewable blade of hardened and tempered high-carbon or alloy steel. The hacksaw blades are classified by length and the number of teeth to the inch. Coarse blades have 14–16 teeth to 1in (25.4mm) and are used to cut soft metals; finer blades have 18–24 teeth to 1in (25.4mm) and are used to cut harder metals. The blades must be fitted with the teeth pointing away from the operator to the front of the frame,and the blade should be slightly tensioned in the frame.Car Repair Talk's forum.