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US 2022/0240949 A1Published application
Drill bit and method for producing a drill bit
AssigneeSurgibit IP Holdings Pty Limited
InventorLiam Patrick ELLIS
Life of this patent
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Abstract
A drill bit including a shaft which has a pyramidal shaped end defining a drill tip with a plurality of edges defining the pyramidal shape. One or more recesses are provided for directing away debris produced whilst drilling. At least one recess has a first portion extending along the shaft and a second portion having a first portion extending along the shaft and a second portion which extends along the drill tip. The second portion of the at least one recess extends along an edge of the drill tip.
Claims22
A drill bit comprising:
- a shaft which has a pyramidal shaped end defining a drill tip with a plurality of edges defining the pyramidal shape;
- and
- one or more recesses for directing away debris produced whilst drilling, the or each recess having a first portion extending along the shaft and a second portion which extends along the drill tip, wherein the second portion of the or each recess extends along an edge of the drill tip.
A drill bit comprising:
- a shaft having a drilling end defining a drill point;
- at least one face that extends to and helps define the drill point, the or each face generally subtending an acute angle with a longitudinal axis of the shaft;
- and
- at least one flute defined in the shaft for directing away debris produced during drilling, with the at least one flute intersecting with the at least one face, such that, in end view, the flute is offset from a central part of the face.
1 more element
A method for producing a drill bit, comprising the steps of:
- forming a shaft which has a pyramidal shaped end defining a drill tip with a plurality of edges defining the pyramidal shape;
- and
- forming one or more recesses for directing away debris produced whilst drilling, the or each recess having a first portion extending along the shaft and a second portion which extends into the drill tip, wherein the second portion of the or each recess extends along an edge of the drill tip.
Dependencies are inferred from the claim text.