thin blade with internal peripherischer cut: methods for their manufacture.

摘要

An annular thin plate blade (K1) having a cutting edge at its inner periphery and a method of producing the thin plate blade (K1) in which an annular member (40) made of polycrystalline diamond formed by vapor phase synthesis is provided at the inner periphery of the thin plate blade (K1) and the thin plate blade (K1) has a thickness of 20 to 300 mu m.