Busch 4203 4 Groove Carbide Twist Drills on 3/32" Shanks .70mm-1.60mm - Kit of 10 Prop 65 - Cobalt Square needle file – 5-1/2

Square needle file – 5-1/2 inch

Carrying handle

longer straight cuts require careful technique

they offer comfortable leverage for bench work

Each stake is cast in 420 stainless steel

Busch 4203 4 Groove Carbide Twist Drills on 3/32" Shanks .70mm-1.60mm - Kit of 10 Prop 65 - Cobalt Square needle file – 5-1/2These Busch 4203 carbide twist drills feature a 4 groove design optimized for cutting softer organic materials such as coral and pearls. Mounted on 3 32" shanks, this kit provides ten drills ranging from 0. 70mm to 1. 60mm, offering a complete size progression for fine drilling work. The 4 groove geometry delivers outstanding service life when used correctly and within recommended operating parameters. For best results and longest tool life, use these