1-1/4 X 1/2 C'BORE - Boring Bits

Designed to cut clean holes in wood and plastic. Can also be used with stop collars. Allowing them to be sunk far enough beneath the surface to allow for a wood plug to be used to cover the head. Can be set at any point on a twist drill and held fast with two hex-socket set screws. The Type “R” counterbores are made of stainless steel. The extension lip pattern cutting edges allow it to cut clean holes through wood and plastic without tearing.