5/8" Spline. 9/16" Hex. 1/2" Hex & Spline. 12mm Hex. 7/16" Hex & Spline. 3/8" Hex. 10mm Hex. 1/4" Hex. 9/32" Hex. 1/4" Drive Spinner. U.S. & Canadian-made by Husky, Mastercraft, Craftsman & Challenger. $12.00 Call or text Virgil @ (403) 397-9386.