POWERTEC 71025 Chisel Honing Guide Can be used with a wide range of chisel and plane iron compassing width from 1/16" to 2-5/8" (1.6mm to 67mm) Easily loosen and tighten guide with the handy threaded bolt Roller glides made of hardened steel Two sets of stepped jaws allow your chisels and plane irons firmly gripped for desired honing angle