This leather groover is made of steel and has a wooden handle. 2 set Manual instruments:1 set x alphabet & 1 set x Sharpener Professional tool for making sewing slots and sewing tool for leather edging, carving and creasing. This leather stitching groover is easy to adjust. Simply loosen the drill chuck, adjust it and push it back in. Anti-slip handles design, exquisite appearance, prong and strong hardness. Rotary bearing can be adjustable to change the length of the tool.