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A circle of the desired size is marked on the material chosen, in this case Nylon 6-6.
Mounted to a fixture with double-sided tape, the mounting hole is bored.
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NEW!! Casting the 95%tin/5% Antimony Laps!
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The outside diameter is turned, and if needed, the face machined flat.
Bimetal or inlaid laps:
By machining a recess into a bronze or iron lap, a bimetal lap can be made. Simply fill the recess with solder, tin, 95/5 tin/antimony, pewter, etc., and then machine the surface flat. The outer band of the base metal gives fast cutting action, while the tin center provides a smooth prepolish.
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