This tool rest is designed for mounting directly to the bench in front of either a 150mm or 200mm bench grinder. In the face of the rest there is a slot into which the optional grinding jig (M0601) slides. The toolrest and the grinding jig can be bought as separate items. As always with Veritas products this tool rest is well thought-out and immaculately produced, and should prove to be of great use to the turner or general woodworker.