... turning tool, bit, cutter, carving knife, computer engraving machine, engraving machine. grinding machine knife is aimed at turning tool, bit ... and inventer and all screw. blade grinder , knife grinding machine, knife sharpener Max.grinding length(mm):1500,2000, 2500, 3000,3500 ... using worm gear transmission,magnetic chuk knife,grinding head degree has special grinding head motor, it apples paste type ...