Patent ID: 7572088
Filing Date: 2009-08-11
Classification: B23B,B23Q,Y10S,Y10T

Abstract:
1. A deep hole boring head configured for rotating about a central axis, comprising: a body; and a duct which is inside the body, said body having a front part which includes at least one cutting edge and at least one recess, said cutting edge being followed by the recess that leads to the duct wherein the duct allows chips formed during boring to be cleared away rearwardly, said deep hole boring head comprising at a front end thereof and at a center portion thereof a pilot drill bit which is removable from the front part of the body and which protrudes forwardly of the front part of the body, the pilot drill bit guiding the head during boring of a production piece, wherein said pilot drill bit also comprises a device configured for adjusting a distance by which the pilot bit protrudes forward of the body.