| 摘要 |
A shank for a cutting tool comprises a cutting edge holding member and a shaft member having a tip end joined to a rear end of the cutting edge holding member. One of the rear end of the cutting edge holding member and the tip end of the shaft member has a conical protrusion, and the other has a conical recess engaged with the conical protrusion. Upon the engagement of the conical protrusion and recess, the cutting end holding member and the shaft member are easily and assuredly brought into proper coaxial alignment. <IMAGE> |
