Tool Dresser
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Operates compressed-air or steam-driven machine to sharpen
large drills, such as rock drills, used in construction, mining,
quarrying, and well-drilling: Places cutting end of drill in
forge to heat cutting edge to riase malleability. Insetrs
heated drill into die space on machine. Starts hammering action
of die to shpae cutting edge of drill.
Stops machine and removes
edged drill.
Tempers drlil by heating it in forge and quenching
it in water, brine, or oil.
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Tool Dresser
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