Lesson 4/Learning Event
Drill Point (Rod)
Sharpen the cutting edges of a drill one lip at a time. Each lip must have
the same length and angle in relation to the axis of the drill.
Set the
sliding head securely on the rule at the mark equal to the length of the
drill.
Place the drill vertically against the rule so that the drill lip
contracts the 59 degrees angle of the sliding head. Hold the drill and gage
up to light. The correct angle is obtained when no light is seen between
the gage and drill.
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