Proto Socket Driver Bit, Standard Length, Measurement System: Imperial, 3/8 in Drive, Hex Bit, 1/4 in Bit, 1-5/8 in Bit Length, 2-23/32 in Overall Length, Specifications Met: Federal GGG-W-641Ex, Alloy Steel, Polished Chrome

ITEM FEATURES:

• Made using a heat treated alloy for wear resistance which helps minimize distortion for a long life
• Hex opening holds the bit allowing the bit holder to take the torque load
• 2-piece design allows replacement of worn bits
• 4985RKA replacement shaft