CMT 392.350.11 Hinge Boring Bit, 35mm (1-3/8-Inch) Diameter X 5/16-Inch Parallel Shank

Hinge boring bits to set a new standard for performance and value! This bit features new downcut round sharpening for a more precise cut and extra-fine micrograin carbide for endurance and a faster feed speed. We use the finest industrial quality micrograin carbide to produce very sharp cutting edges and improve cutting resistance.