Turning tool i.e. drilling tool, has receiving part and front part aligned to each other, and drive pin and receiving pocket exhibiting asymmetrical cross-sectional surface and widening with increasing distance to center axle

摘要

#CMT# #/CMT# The tool has a receiving part (6) and a front part (4), which moves along a center axle (8) and are fixed together in a detachable manner via a drive connection. A coupling pair is formed by a drive pin (18) and a receiving pocket interlocking with each other. The pin and the pocket are designed such that the receiving part and the front part are aligned to each other via the pin and the pocket during joining of the receiving part and the front part. The pin and the pocket exhibit an asymmetrical cross-sectional surface and widens with increasing distance to the center axle. #CMT#USE : #/CMT# Turning tool i.e. drilling tool (claimed). #CMT#ADVANTAGE : #/CMT# The drive pin and the receiving pocket exhibit the asymmetrical cross-sectional surface and widens with increasing distance to the center axle, thus transferring high torque forces and reducing the attenuation of the receiving part. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of a rear of a drill head of a modular drilling tool. 4 : Front part 6 : Receiving part 8 : Center axle 18 : Drive pin 22 : Coolant boreholes.