Plated diamond chamfer points ream out drill holes and leave a smooth and rounded internal surface. It removes sharp edges that can cut bead string.
This Point is 2.2mm diameter, 9.0mm long, 2.35mm shank, 220 grit.
For use on hardened steel, glass, precious metals, ceramics, stone and
composite materials in industrial, jewelry and laboratory applications;
and on hard and soft woods for carving fine detailing and texturing.
120,000 RPM Max Speed.