| 摘要 |
PURPOSE: A cutting tool for chamfering hole is provided to operate a precise cutting without shaking of a cutting edge and by integrally forming a cutting part with a guide edge mounted in the side of an exchangeable cutting edge. CONSTITUTION: In a cutting tool for chamfering hole, a guide edge(15) made of a cemented carbide and an exchangeable cutting edge(18) are mounted in a cutting part(12) formed in the end of a shank(11) of a body. An insertion groove(14) is formed in an incline(13) of the cutting part. The guide edge is protuberantly inserted in the insertion groove and is integrally formed by brazing weld.
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