Busch 4203 4 Groove Carbide Twist Drills on 3/32" Shanks .70mm to 2.30mm Drill Size:.90mm 2 sterling silver cuff link

2 sterling silver cuff link backs

this mounting reflects consistent quality and craftsmanship

Valtitan treated Hardness 72 HRc (Rockwell scale) Country of Origin Switzerland Cut Grading System 00 (coarsest) – 6 (finest)

making it an ideal choice for pendants

copper-based alloys

Busch 4203 4 Groove Carbide Twist Drills on 3/32" Shanks .70mm to 2.30mm Drill Size:.90mm 2 sterling silver cuff linkThe 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