Multi-piece twist drill head and twist drill including the same
One non-limiting aspect of the present disclosure is directed to a multi-piece twist drill head. The multi-piece twist drill head includes a core piece formed from a first hard material, and a peripheral piece formed from a second hard material. The core piece and peripheral piece each comprise a cu...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | English |
Published |
06.01.2015
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | One non-limiting aspect of the present disclosure is directed to a multi-piece twist drill head. The multi-piece twist drill head includes a core piece formed from a first hard material, and a peripheral piece formed from a second hard material. The core piece and peripheral piece each comprise a cutting edge and are adapted to mate to provide a central region and a peripheral region, respectively, of the multi-piece twist drill head. A twist drill including the multi-piece twist drill head is also disclosed. |
---|---|
Bibliography: | Application Number: US201113179662 |