Busch 4203 4 Groove Carbide Twist Drills on 3/32" Shanks .70mm to 2.30mm Drill Size:.80mm Formerly distributed under the Grobet

Formerly distributed under the Grobet Swiss name

steel mandrels

corresponding to approximately 21 to 18 gauge wire

Metal Sterling Silver Width 3

Busch 4203 4 Groove Carbide Twist Drills on 3/32" Shanks .70mm to 2.30mm Drill Size:.80mm Formerly distributed under the GrobetThe Busch 4203 series carbide twist drills feature a 4 groove design optimized for cutting softer organic materials such as coral and pearls. Mounted on 3 32" shanks, these drills are available in 13 sizes ranging from 0. 70mm to 2. 30mm, making them a versatile addition to any jeweler's or craftsperson's drill collection. Sold individually, each drill delivers outstanding service life when used correctly. For best results and longest tool life, use