Quick-Change jaw quickly converts from clamp to spreader and requires no tools. Constructed of high-tech reinforced resin for strength and durability. Exerts up to 250 lbs. of clamping pressure. Patented pistol grip design enhances comfort and ease of use. Non-marring pads grip firmly and protect work. Ideal for clamping/gluing, holding work for sawing/drilling, and positioning work for fastening.SEPTLS586518QCN. TLS586518QCN. Irwin quick-grip Irwin quick-grip Bar Clamps / Spreaders - 518QCN.