Bosch BL2135 Fractional Jobber Bit Fractional Drill Bit, Helix Flute, 1-3/4 in L Flute, 1 in L Shank

Each metal drill bit is manufactured to exacting specifications and features a split point that starts on contact with no walking or skating, eliminating the need for a center punch. Offers superior durability, speed and selection to support most general purpose applications. Speed helix design for three times faster drilling than standard bits. 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.Speed helix design for 3X faster drilling than standard bits

Speed helix design for 3X faster drilling than standard bits

Last 50% longer than high-speed steel

Easier drilling, reduced heat and extended drill bit life