Draper Expert 4.1mm Cobalt Twist Drill For Helicoil Thread Repair Kits
- Draper Expert 76101, Expert Quality, a selection of metric-sized high speed steel straight shank drills (with 5% cobalt) for specifically drilling out damaged threads prior to insertion of a Helicoil&174; insert. The addition of cobalt to HSS adds strength & wear resistance for longer life. For use with UNC & UNF Helicoil&174; Thread Repair Kits. Display packed. Manufactured to DIN338 & ISO235/1 Specifications Draper Expert 76101 12.4mm Cobalt Twist Drill for Helicoil Thread Repair Kits