Busch ball cutter made of carbide, coarse version, Fig. 1AU / HM.

Especially designed for pavé settings…, made of materials such as platinum, titanium, steel and white gold.

Holes drilled with the twist drill 4205S are enlarged as required with larger round carbide burs 1AU. This creates a secure mount for the girdle of the gem to be set.

Carbide ball cutters made of hard metal with cutting edges
Shaft-Ø: 2,35mm
Recommended speed: 2,000 - 10,000 rpm.