DRILL BIT, 21/64" BLACK OXIDE- FOR STEEL-CARDED

Bosch's 21/64-in x 4-5/8-in black oxide coated fractional jobber drill bit is manufactured to exacting specifications & features a split point that starts on contact with no walking or skating.

-Diameter: 21/64 Inch.
-Overall Length: 4-5/8 Inch.
-Shank: 21/64 Inch.
-Speed helix design for three times faster drilling than standard bits.
-Last 50% longer than high-speed steel.
-Easier drilling, reduced heat and extended drill bit life.
-For use in steel, copper, aluminum, brass, oak, maple, MDF, pine, PVC, polycarbonate, acrylic, ABS, nylon and composite materials.