Patent ID: 9687916
Date: 2017-06-27
CPC Classifications: B23B,B28D,Y10T

Claim:
1. A drill bit which is rotatable about a drilling axis, comprising: a drill shaft section having a first plug-connecting element; and a cutting section having a second plug-connecting element; wherein the first plug-connecting element and the second plug-connecting element form a plug connection with an inner plug-connecting element and an outer plug-connecting element, wherein the inner plug-connecting element is closer to the drilling axis than the outer plug-connecting element and the outer plug-connecting element is farther away from the drilling axis than the inner plug-connecting element in a plane perpendicular to the drilling axis; wherein the cutting section includes a plurality of cutting subsections each having a ring subsection and at least one cutting segment, wherein each ring subsection together with the first plug-connecting element forms the plug connection and is connectable to the first plug-connecting element by a pin connection; wherein each pin connection has a receiving borehole and a pin element, wherein the pin element is insertable into the receiving borehole, wherein the pin element is a loose pin element, wherein the receiving borehole passes completely through one of the first and second plug-connecting elements and Passes at least partially through an other of the first and second plug-connecting elements; wherein the receiving borehole is at least as deep as the pin element.