This high-performance grinding jig serves as an upgraded grinder table for everyday grinding; replacing the light duty tool rests on your grinder. It offers even and consistent grinding of your chisels, gouges, and other cutting tools. Ideal for quick grinding of fingernail profiles on shallow spindle gouges or side grinds on deep fluted bowl gouges. The v-arm holder support your chisels at a constant angle. With Fingernail gouge jig, it allows you upgrade to a three-position tool holder. The two bases mount under each grinding wheel of your grinder. The locking handle allow you to secure positioning after moving the bases in or out based on your needs. The platform table can be repositioned in different angles by the adjustable lock lever. BG-GRIND4 4PCS Set Complete Grinding Jig System for Wood Chisels