DISK TYPE CUTTING TOOL POSSIBLE TO OBSERVE THE LIFE SPAN

摘要

PURPOSE: A disc-shaped cutting edge capable of checking life span is provided to enable a replacement time of a cutting blade in a process time by detecting a lifetime of a cutting blade using a measuring guide. CONSTITUTION: A disc-shaped cutting edge capable of checking life span comprises a cutting blade main body(110), a joint(112), a cutting tip(120), and a measurement guide(130). A mounting hole(111) is formed in the center of the cutting blade main body. The joint is formed in an outer periphery of the main body. The cutting tip is installed to the joint and is arranged according to an end periphery of each joint. The measurement guide is arranged between the cutting tips and is formed in one or more cut-back end range of the joint.