Four-flute, center-cut design produces smooth cuts and allows plunge cutting to eliminate pre-drilling. Right-hand cut, right-hand helix. Use in right-hand turning equipment. Single-ended. Premium, high feed rate carbide for hardened steels. Mfg: Brownells SPECS: Shank dia. is same as cut dia. Overall lengths from 2 1/2" (6.35cm) to 3" (7.62cm). 1/4" (6.35mm) dia. x .750" (19mm) long cut. 5/16" (7.9mm) dia. x .812" (20.6mm) long cut. 3/8" (9.5mm) dia. x .875" (22.2mm) long cut.
