Knock Off 32MM 7 Button 12 Degree Bit

The 12 degree tapered ballistic knockoff button bit, ballistic style, seems to be the choice of production drillers. With its fast penetration and with its long shank giving a straighter hole makes the life of the driller easier. The shorter shank button bit wanders making the driller having to wrench the drill steel and bit out of the hole making his life a litle tougher.