The heavy-duty style 3730-HD bar clamps have a 3" reach and 30" capacity. Used by cabinet-makers, woodworkers, metalworkers or for home-shop and do-it-yourself projects. Reach of 3". Bars that are 1" X 5/16" plated, round-edge, high-carbon steel. Sliding heads that have 1/2" cold-drawn steel screws with smoothly cut ACME threads. Castings that are hardened steel thrust bearings and castings of malleable ductile iron with orange baked enamel finish. Multiple-clutch-discs. Swivel has 1-3/16" diameter steel internal tooth washers for positive "stay-on" power. Larger handles that are solid maple. 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 for double "stay on" power
