It can generate powerful force to bend mild steel, stainless steel or aluminium. Bending Tool Die Block Assembly for WFB2 WFPB1000 1-5/8" Tube Bender 5" OD. Material Thickness 1/16" for 1" wide mild Steel or 3/16" For 1/2" wide mild Steel or 1/4" for 1/4” wide mild steel.