A file made from which material will provide the best performance for finishing hardened steel parts?
Tool steel
A file must be considerably harder than the workpiece it cuts, otherwise its teeth blunt instantly.
Files are made from high-carbon tool steel, which is hardened and tempered so the teeth stay sharp even against hardened steel parts.
Aluminium, copper and brass are all softer than hardened steel and would deform rather than cut, so they cannot be used for file bodies.
Hence, the answer is Tool steel.
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Which one of the following is a multi-point cutting tool?
What material is used to make file?
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The file used for filling leather is
