Prime-Line Products N 6824 Bi-Fold Door Pivot Wrench, 5/16 in. & 1/2 in. Open, Stamped Steel Used to adjust bottom pivots and brackets Features 5/16 in. and 1/2 in. open-ends, and one 5/16 in. box-end Measures 3-15/16 in. long Constructed of stamped steel