Size #42 & #52 grinding Blade. Commercial Grade Very strong and resharpenable for heavy duty meat grinders. Premium stainless steel knife for meat grinders, choppers and mixer motors with grinding attachments. Heavy raised edge. This knife weighs 50% more than standard blades. Fits electric grinders that use the #42 or #52 size accessories. This blade measures 4 11/16" tip-to-tip. Center square hole is 13/16". 3/4" (22mm) thick. This will fit your grinder if your plates are 5 1/16" across. Smaller and larger sizes also available.