ITEM NAME:13Pcs M2 High Speed Steel Left Hand Twist Drill Bit Set with Nitride Coating Description: CNC straight shank centering drill bits set positioning tool comes in metal index case for easy storage Bits made of high speed M2 steel with a titanium nitride coat for added durability Special left hand design can also be used with screw extractors to remove broken fasteners Attachable to reversible drills to remove screws, bolts, and studs around the house, garage, or on the job site Set includes: 1/16 5/64 3/32 7/64 1/8 9/64 5/32 11/64 3/16 13/64 7/32 15/64 1/4 inch bits Specification: Material: HSS Color: Golden Package Includes: 13 Pieces Drill Bits.Bits made of high speed M2 steel with a titanium nitride coat for added durability. 13 Pieces Drill Bits. Special left hand design can also be used with screw extractors to remove broken fasteners. Attachable to reversible drills to remove screws, bolts, and studs around the house, garage, or on the job site.