Heavy-duty style with 3 in reach and bars that are 1 in x 5/16 in plated, round-edge, high-carbon steel. Sliding heads have 1/2 in cold-drawn steel screws with smoothly cut ACME threads castings that are hardened steel thrust bearings and castings of malleableductile iron with orange baked enamel finish. Multiple-clutch-discs swivel has 1-3/16 in diameter steel internal tooth washers for positive 'stay-on' power; fixed-heads that are riveted and press fitted, malleable iron with orange baked enamel finish 2 large soft, durable pads; fixed-heads that are press fitted and riveted fixed heads. Solid Maple Handle. 1,000 pound load lmit.