Figure 1-42.-Adjustable die guide and ratchet diestocks.
by experienced personnel to maintain the accuracy and
the cutting effectiveness of taps and dies.
Keep taps and dies clean and well oiled when not
in use. Store them so that they do not contact each
other or other tools. For long periods of storage, coat
taps and dies with a rust-preventive compound, place
in individual or standard threading set boxes, and store
in a dry place.
SCREW AND TAP EXTRACTORS
Screw extractors are used to remove broken
screws without damaging the surrounding material or
Figure 1-44.-Screw and tap extractor.
Figure 1-43.-Tap and die thread sets.