Saw Arbors for carbide or HSS Saws from AB Tools, Inc. are precise, for the thinnest saws, high torque for keyless saws and rugged with key drives from 5/8 and larger. Made from alloy steel, hardened, precision ground, and black oxide coated. These arbors each come with a set of spacers and threaded nut to allow adjustment of various width carbide or HSS saws to the best position on the arbor diameters. Keyways with keys are included with the larger diameter arbors. Proudly made in the USA by AB Tools, Inc.