An ideal way to hold inserts while sharpening the sides, nose, and edges. Holds all shapes of inserts. Saves your fingers and lets you do a better job. Use the holders with any Accu-Finish machine, bench grinder, or double-end tool grinder.Available in two sizes: 1/8″ to 3/16″ thick and 3/16″ to 1/4″ thick.