Sorby ProEdge Square Chisel Jig is an essential accessory designed to work with the Robert Sorby ProEdge Sharpening System. This jig is used on the tool rest to securely hold chisels, plane irons, and other square-ended tools at a precise 90-degree angle to the abrasive surface, ensuring accurate and consistent sharpening results. Crafted with quality and precision in England, it enhances the sharpening process for woodworkers and craftsmen looking for superior edge maintenance. Model Number: WPESQ