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METAL LATHE DRILLING & CORING
xx METAL DRILLING & CORING
xx METAL LATHE
Squaring the circle. Technique for cutting into a round hole (edgewise) with a square cutting tool. Repeating this process over-and-over, taking off a small amount of metal each time, results in a perfectly square hole. PROJECTS IN METAL Apr 1989 (v.2#2) pg. 15
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