20 mm (Dia.) Cylinder (Hinge) Bit

These boring bits are designed for accurate boring and the two wing cutters and two spur cutters prevent bottom side tear out. Boring bits are supplied with a 10mm shank with an adjustable top screw making them compatible with most boring machines. The 3557E is designed with a 3/8" shaft to fit in most drill presses.

(CB20070L, 10mm Shank, 20mm Cut Dia, 70mm OAL LH Hinge Boring Bit