Tool

2:

• The tool according to claim 1, wherein the hardness of the composite is greater than 500 HV10.

3:

• The tool according to claim 1, wherein the hardness of the hard metal is smaller than 1600 HV10.

4:

• The tool according to claim 1, wherein cobalt and nickel together contribute at least 80 vol % of the cobalt-nickel-base alloy of the hard metal.

5:

• The tool according to claim 4, wherein the cobalt-nickel-base alloy of the hard metal contains at least 40 vol % nickel.

6:

• The tool according to claim 1, wherein the cobalt-nickel-base alloy of the hard metal contains at least 80 vol % cobalt.

7:

• The tool according to claim 1, wherein the cutting edge adjoins the base.

8:

• The tool according to claim 1, wherein the base having a base face is welded onto the main body and the height of the base corresponds to between 10% and 50% of the total height of the sintered cutter.

9:

• The tool according to claim 1, wherein the metal carbide of the base is at least 95 vol % tungsten carbide, or at least 98% tungsten carbide, or completely consists of tungsten carbide.

10:

• The tool according to claim 1, wherein the tool is a drill bit, which has a drilling head having three to six cohesively sintered cutters.

11:

• The tool according to claim 10, wherein the cutting edge is respectively formed from a leading face that is leading in the direction of rotation of the drill bit and a trailing face that is trailing in the direction of rotation of the drill bit and the leading face and the trailing face include an obtuse angle.