Drill bit for percussion drilling or impact drilling use for cutting reinforcing steel in concrete
AssigneeHeller Tools GmbH
InventorsRainer Lampe, Torsten Thiel, Guido Hoff
Life of this patent
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Abstract
A drill bit for percussion drilling or impact drilling use for cutting reinforcing steel in concrete, wherein the drill bit has a substantially hollow-cylindrical carrier body extending along a geometric drill bit axis, wherein the carrier body has at least one chisel tooth with a substantially radially extending first chisel edge. The first chisel edge is arranged in a middle portion of the chisel tooth, in particular precisely centrally, in the circumferential direction, and the chisel tooth has a second chisel edge extending substantially tangentially to the circumferential direction of the drill bit.
Claims19
A drill bit for percussion drilling or impact drilling use for cutting reinforcing steel in concrete, wherein the drill bit comprises a substantially hollow-cylindrical carrier body extending along a geometric drill bit axis, wherein the carrier body comprises at least one chisel tooth with a substantially radially extending first chisel edge,
- wherein the first chisel edge is arranged in a middle portion of the chisel tooth in the circumferential direction, and the chisel tooth comprises a second chisel edge extending substantially tangentially to the circumferential direction of the drill bit,
- wherein the chisel tooth comprises at least one form-fit element which is brought into engagement with a counter form-fit element of the carrier body such that the chisel tooth is held radially fixedly on the carrier body.
Dependencies are inferred from the claim text.