American Carbide Tool Carbide-Tipped Tool Bit for Cutoff, Left Hand, 370 Grade, 0.625" Square Shank, CTL 130 Size CTL-style tool shape has a 5-degree end cutting angle and a taper on the non-cutting side for cutoff or grooving of solid bars and tubing stock Carboloy 370 grade uncoated carbide tip for roughing and heavy machining of steel and steel alloys Left-hand cutting direction for left-to-right feed Positive rake angle provides a sharp edge for making continuous cuts Square steel shank fits square toolholders