Xgunion C Spanner Tool Adjustable Hook Wrench 51-121mm / 2 - 4-3/4" Chrome Vanadium By (Large) Handle Length : approx 8-1/2-Inch Ideal for turning nut or bolt Convenient and easy to use The width of the square head is 12mm ; Depth4mm. Capacity Diameter Adjustable Min : 2-Inch. Capacity Diameter Adjustable Max : 4-3/4-Inch.