Step Drill Bit HSS4241 1/8" to 1/2" 13 Sizes Straight Flutes Triangular Shank for Metal Wood Plastic 2Pcs Cotter Pins its service life can more

its service life can more than 15 years

electronic instruments and other fields

Cylinder Diameter: 17

create more elegant look

Step Drill Bit HSS4241 1/8" to 1/2" 13 Sizes Straight Flutes Triangular Shank for Metal Wood Plastic 2Pcs Cotter Pins its service life can moreFeatures: Laser marking makes the size more clear; High speed steel for longer service life; Used on electric drills and drill presses; Double cutting edges design enables a faster and smoother cutting; X type openings design to facilitate the removal of cutting waste when drilling; The sharpness and titanium coating ensure easily cut through most metal, aluminum, plastic, wood and other materials with ease; Specifications: Surface Treatment: Titanium