A rotatable cutting bit (10), and rotatable cutting bit-bit holder (20) and washer (19) that have increased wear resistance characteristics.

The individual drill of the set comprises a basic body and two bits, viz. a centre bit (3) and a periphery bit (4).

A road grading pick includesa cutting head, a shank, a shoulder at a transition between the cutting head and the shank, and a polygonal-shaped washeror an oval- shaped washer.

A cutter tool comprises a tool holder (10), a cutting bit (12) mounted in a bore (14) of the tool holder, and a washer (40) disposed between the tool holder and the cutting bit.

The cutting bodies (24) can form a geometrically defined or a geometrically undefined tool blade.

In a third aspect, the invention also relates to an indexable drill bit for drilling tools of the type in question

An apparatus and method for determining a condition of a cutter coupled to a drill bit is disclosed.

Provided is a cutting insert comprising an upper face, a lower face, and side faces.

The second stone or diamond or piece of material is mounted on a second holder with a thin edge standing out.

An auger bit includes an elongated shaft, a cutting bit, a feed screw, and a locking fastener.

The roto-percussion head (46) acts on the drilling tube (4) of which the base carries a cutter.

Each of the plurality of blades includes one or more holes therethrough configured to receive a cutter that is secured therein.

An implement end cutting-bit with a body having front, rear, top, bottom, inner side and outer side portions.

Omega – A sealed bearing bit designed to exceed expectation in unpredictable environments.

Omega – A sealed bearing bit designed to exceed expectation in unpredictable environments.