QA1 1865-112 Weld-on Wrench Hex, 1 3/4 OD Tube, 1.765 ID, Fits a 2 Wrench

QA1's Weld-On Wrench Hexes can be used in place of a hex style tube adapter. Simply use smooth style tube adapters and slip the weld-on wrench hex over the tube. Weld it to the tube where it is most convenient for easy adjustment.  Sold Each.