This sharpener streamlines the process of honing your dull drill bits, delivering a smooth and low-vibration grind for exceptional results. Equipped with a 230-grit cubic boron nitride wheel, it effortlessly sharpens both standard and split point bits, making the task a breeze. It's designed for drill bit diameters ranging from 1/8 in. to 1/2 in. Using it is a breeze as well-just secure your bit in one of the 11 included ER-20 collets, insert the collet into the holder, power up the machine and start grinding. Compatible with various drill bit types, including HSS, M2 HSS, HSS titanium-coated and M35 HSS cobalt, this machine restores an edge to all varieties. Invest in this affordable solution to keep your bits in optimal condition, allowing you to sharpen them as needed and avoid unnecessary replacement costs. Made in an ISO 9001 factorySPECIFICATIONS: Motor: 1/8 HP, 120-Volt, single phase, 1.6ADrill bit diameter range: 1/8 in.-1/2 in. Drill bit minimum length: 1-3/4 in. Drill bit angle range: 95° to 135°Drill bit point styles: Standard, split Collet type: ER-20Collets: 11, 1/8 in. to 1/2 in. Grinding wheel bore: 1/2 in. Grinding wheel maximum diameter: 3 in. Grinding wheel maximum width: 3/4 in. Grinding wheel grit: 230Overall dimensions: 11 in. W x 6 in. D x 6-1/2 in. HApproximate shipping weight: 20 lbs. COLLET SIZES:1/8 in., 5/32 in., 3/16 in., 7/32 in., 1/4 in., 5/16 in., 11/32 in., 3/8 in., 13/32 in., 7/16 in., 1/2 in.