Proto Socket Driver Bit, Extra Long, Measurement System: Metric, 3/8 in Drive, Hex Bit, 6 mm Bit, 127 mm Bit Length, 6-3/32 in Overall Length, Alloy Steel, Polished Chrome

ITEM FEATURES:

• Made using a heat treated alloy for wear resistance which helps minimize distortion for a long life
• 2-piece design allows replacement of worn bits
• 4990-6MXLRKA replacement shaft
• Bit holders have a hex opening to hold the bit allowing the bit holder to take the full load of torque