Product size: 1 / 4 inches (hole) to 3 / 8 inches (head): 0.54 x 1 inches; 3 / 8 inches (hole) to 1 / 4 inches (head): 0.65 x 1 inches; 3 / 8 inches (hole) to 1 / 2 inches (head): 0.7 x 1.42 inches; 1 / 2 inches (hole) to 3 / 8 inches. " (head): 0 .85" x 1.44".
Heat treated chrome vanadium steel is treated with a layer of black oxide and has good compressive strength of normal torque.
Square ratchet sleeve adapter is suitable for square gimbal assemblies and square transmission extension rod assemblies for industrial, mechanical or construction work.
The adapter plug is suitable for square gimbal kit, square drive extension bar kit.
Adapters and reducers are made from chrome steel, forged and heat treated with heavy hammer for exceptional strength and durability that surpasses and withstands any working condition.