Bosch Bulldog HC2163 Hammer Drill Bit, 1 in Dia, 10 in OAL, Optimized Flute, 4-Flute, 25/64 in Dia Shank COIL ROOFING NAIL GUNS robust lead-free DZR brass body

robust lead-free DZR brass body resists corrosion Easy-to-disconnect and reusable

3-5/16 in L

TANK CROSS 1X10 TWO1/2

durable epoxy finish to resist rust

Bosch Bulldog HC2163 Hammer Drill Bit, 1 in Dia, 10 in OAL, Optimized Flute, 4-Flute, 25/64 in Dia Shank COIL ROOFING NAIL GUNS robust lead-free DZR brass bodyCarbide tipped for long life in tough applications. Centric tip ensures quick starts in concrete. Wear mark alerts user when tip wears beyond ANSI specification. Bit runs cooler thanks to improved flute design. Optimized brazing and hardening process for long life 15% faster compared to S4L in concrete Bosch made carbide tip is tougher and more durable under heavy loads Proprietary Bosch hardening process results in more holes per bit Optimized flute