Proto® Socket Hex Bit has two-piece design that allows replacement of worn bits. Bit holders have a hex opening to hold the bit, allowing the bit holder to take the full load of torque.
Drive size: 1/2-inch Square
Size: 1/4-inch x 1 3/4-inch Bit
Length: 3 1/4-inch
Measuring system: Inch
Material: Forged Alloy Steel
Hex bit has a 1/4-inch bit size
Precision machined tip for proper screw engagement