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Classic torpedo swivel-bar back design
and change-out schedule guidance
326" Fits Post Diameter 1
Use steel media with detergent to burnish and work-harden pieces
Contact Grobet USA directly for warranty issues
Busch 4203 4 Groove Carbide Twist Drills on 3/32" Shanks .70mm to 2.30mm Meco Midget Torch Classic torpedo swivel-bar back designThe 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
