Woodward Tubing Bender, Kit. Tubing Bender Die and Shoe, 180 Degree, 5 in Radius. They are compatible for use in our WFB2 Manual Machine and our WFPB1000 Hydraulic Bender. 1-1/2" OD Round Tubing Die x 5" CLR 180 Degree Die Includes Main Die, Follower and Retaining Strap Minimum Wall Thickness for DOM Minimum Wall Thickness for ERW/SS Minimum Wall Thickness for Aluminum Maximum Wall Thickness 0.083?.