15PCS HSS Drills Black and Amber Finish HSS Left Hand Twist Drill Bits for Metal Drilling with Metal Box (SED-DBSL15-2)

1.Left hand drill bits are ideal for extracting broken, righthand threaded studs and bolts.Designed for use in reversible

drills, lathes and milling machines.
2.Unlike right handed drill bits, the drilling action will assist to loosen sheared off bolts or studs rather than tightening them

further.And made for drilling into hardened steel bolts for creating pilot holes for screw extractors.
3.These unique drill bits are used with your drill operating in reverse and are designed to aid in drilling out broken and

sheared bolts and studs
4.Left Hand Jobber Drills for use in left hand rotation of multiple spindles, gear driven drilling heads, screw machine operations, and lathes.
5.Bit is constructed of M2 high speed steel for the best combination of strength, heat resistance, and wear resistance.
6.The fully ground twist drill bit has a more precise concentricity.

7.135° point takes a smaller chip resulting in less heat. Friction is reduced by amber gold surface treatment.