NONIGNITABLE TOOL

摘要

PURPOSE: To provide a nonignitable tool capable of restraining generation of sparks though a nonignitable tool constituted wholly of beryllium copper, etc., had trouble with abrasion resistance. ;CONSTITUTION: The whole of a main body 3 on the machine tool base end side is constituted of a nonignitable tool material having abrasion resistance capable of being used as a machine tool, out of nonignitable materials containing on component causing a spark generating source. A tip member 4 formed by forming a coating layer 4b having abrasion resistance higher than the nonignitable tool material, and made of nonignitable tool materials on the center part 4a constituted of the nonignitable tool material is attachably/ detachably attached to the tip of the main body 3.;COPYRIGHT: (C)1996,JPO