Patent ID: 11970909
Assignee: TRACTO-TECHNIK GMBH & CO. KG
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A drill bit of a ground drilling device that is a ram drilling device, the drill bit being adapted to receive an attachment fastened to the drill bit, the drill bit comprising:
a drill bit receptacle, wherein the attachment comprises an attachment receptacle and each of the drill bit receptacle and the attachment receptacle extends transversely to a longitudinal direction of the drill bit and the attachment, respectively, for inserting a dowel pin to fasten the attachment to the drill bit; and
an enlargement of the drill bit receptacle with respect to a radius of the dowel pin, wherein the enlargement of the drill bit receptacle is in a straight line that is inclined with respect to the longitudinal direction of the drill bit by an angle between 5° and 20°.