Drilling tool

Details Drilling tool Drilling tool

2005-12-20

2005-12-20

Bagnell, David (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Impact or percussion type

C175S420000, C175S415000, C175S401000, C299S11200T

Reexamination Certificate

active

06976549

ABSTRACT:
The invention relates to a drilling tool (1), in particular for working concrete, rock, masonry and suchlike materials, having a tool head with cutting body (5) which has at least one front rake face (9, 10), at least one rear flank ([lacuna]18) and at least one front-end cutting edge (7, 8), the cutting edge (7, 8) separating the rake face (9, 10) and the flank ([lacuna]18). In this case, the rake face (9, 10) is formed by at least two cutting faces (11, 13; 12[lacuna]) merging into one another at at least one second cutting edge (15, 16).

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