2 Pcs Hole Opener 8mm Soldering Drill Bit M14 Female Thread For Angle Grinder

The cutter head is sharpened, the drilling speed is fast, and the opening is round and there is no interval.

The large row of cuts is designed to reduce the resistance of the holes.

Made of diamond of high hardness and durability.

Suitable for all kinds of marble, ceramic tiles, wall and other stone openings

Perfect suitable for angle grinder.