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Kryptonite Bushings

Thread starter epanzella
Start date Jul 12, 2019

Holescreek

Active User

Registered

Jul 17, 2019

I ran into a similar situation when I was turning the ends on Rockford ball screws for my CNC mill. Carbide wasn't working so I switched to CBN/PCBN (plated cubic boron nitride) inserts. IT got through the hard stuff fairly easily and I cold save the carbide for finishing the slightly softer core material.

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