Drilling tool, particularly exchangeable disk drilling tool, has groove-flange surfaces, where each groove-flange surface is provided with edge at which fitting groove is extended, such that cutting insert is provided under axial support

摘要

The drilling tool (20) has groove-flange surfaces (44), where each groove-flange surface is provided with an edge at which a fitting groove (30) is extended. The fitting groove is extended such that a cutting insert (32) is provided under an axial support with a lateral clearance. A retainer (22) is extended in the direction of a longitudinal axis (24), where the retainer is provided with a shank portion (26) and a head portion (28). The edges are formed by the intersection lines of two fitting grooves that are extended around a small central angle, particularly of 5 degrees.