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HOW TO SELECT THE PROPER EXTERNAL LAP
EXTERNAL LAPS should be shorter than the length of the
part being lapped. When lapping a cylindrical part with lands, the
external lap should be long enough to span as many lands as possible to
prevent rolling edges. STANDARD EXTERNAL LAPS are manufactured
slightly over-size to allow for clearance and can be tightened to the
appropriate diameter with the EXTERNAL LAP HOLDER.
- SPECIAL
DIAMETERS & LENGTHS QUOTED UPON REQUEST
- LENGTH "B" OF HOLDER
MUST CORRESPOND WITH LENGTH "B" OF EXTERNAL LAP.
- STANDARD EXTERNAL LAPS 3/64 - 1/8" MANUFACTURED WITH STRAIGHT SLOT ONLY
- STRAIGHT SLOT - ADDITIONAL CHARGE 9/64 - 2"
DIAMETER
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