Size #42 & #52 grinding Blade. Very strong and resharpenable for heavy duty meat grinders. Premium stainless steel knife for meat grinders, choppers and mixer motors with grinding attachments. 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. This will fit your grinder if your plates are 5 1/16 across. Smaller and larger sizes also available.