Super hard boron nitride CBN turning inserts. Hardened steel HRC50-65 2pcs Pack

Description

Hardened steel (hrc45-65), bearing steel (hrc60-62),
bearing steel greater than HRC62, tool steel (hrc57-60),
chilled cast iron, fine turning and rough turning
High speed cutting of superalloys, thermal spraying materials,
cemented carbide containing more than 10% Co and other difficult to process materials.
Can achieve the car instead of grinding. Greatly improve the processing efficiency.
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