“A” Taper drill bits are designed for use in a rotary hammer equipped with an “A” Taper typechuck. The bits meet ANSI standards and can be used to drill in concrete, block, brick and softstone. “A” Taper drill bits are manufactured from high grade tool steel. The bit is formed witha Turbo flute which quickly removes dust to provide faster drilling into a variety of masonrymaterials. The carbide insert is copper brazed to provide longer bit life. “A” Taper drill bitscan be used in most models of rotary hammer drills with an “A” Taper shank adapter.