Cutting plate used in the production of drill bits having a bore dust conveying groove with different core thicknesses comprises a cutting edge with notches having a depth/length allowing production of drill bits with different diameters

摘要

Cutting plate (10) comprises on at least one side a cutting edge with notches (18, 20, 22) corresponding to different core thicknesses. The notches have a depth and length that allow the production of drill bits with different drill diameters. - An INDEPENDENT CLAIM is also included for a device for producing drill bits using the above cutting plate. Preferred Features: The cutting plate is made of hard metal, a ceramic material, or a combination of these materials.