Sharpening Stone Holder by POWERTEC The POWERTEC 71013 is designed to secure your sharpening stones in place – allowing you to produce high precision edge sharpening on your planes and blades. They conveniently prevent your plates and stones from sliding during the honing process providing you with professional-looking results. 2-3/4” wide body accommodates stones anywhere from 5-1/2” to 9-Inches long. Our sharpening stone holder works perfectly for an assortment of tool sharpener plates stones and chisels.