Product details of Blue G-Clamp For Carpenter / Welding-3'',4'',5'',6'' For heavy-duty applications For use in wood and metal working and other trades Strong ribbed cast steel frame with stove enamel finish Quality steel screw and drop handles G-clamp is a type of clamp device typically used to hold a wooden, metalwork piece, and often used in, but are not limited to, carpentry and welding Ideal for metal and woodworking applications-3''-470gm,4''-630gm,5''-840g,6''-1100gm,8"-1600gm,10"-2000gm,12"-2800gm