公开(公告)号：US10029316B2

公开(公告)日：2018-07-24

申请号：US15385007

申请日：2016-12-20

Applicant: DIAMOND INNOVATIONS, INC.

Inventor： Dwight Dyer ,  Cory Carpenter ,  David Miller

IPC: B23B51/02 ,  B23K26/362 ,  B23K26/402 ,  B23K101/00 ,  B23K103/00

Abstract: A drill bit for a drill includes at least one flute having a rake face including a flute edge and at least one cutting edge having a profile that extends along at least a portion of a length of the cutting edge, the rake face extending from the cutting edge. A chip breaker formed in the rake face, the chip breaker being a continuous groove located adjacent the cutting edge, the groove having a starting end and an exit end opening into the flute edge, the starting end having a depth that is less than a depth of the exit end of the groove, wherein a shape of the groove at the starting end is different from a shape of the groove at the exit end.