Proto® J4990-4M Standard Length Socket Driver Bit, Metric, 3/8 in, 4 mm, 41.3 mm L Bit

J4990-4M MFG #: J4990-4M
$22.26 / EA
Estimated Delivery 7 to 10 Business Days
Proto® J4990-4M Standard Length Socket Driver Bit, Metric, 3/8 in, 4 mm, 41.3 mm L Bit
Proto® Socket Driver Bit, Standard Length, Measurement System: Metric, 3/8 in Drive, Hex Bit, 4 mm Bit, 41.3 mm Bit Length, 2-23/32 in Overall Length, Alloy Steel, Polished Chrome
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  • 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
  • 1404MRKA replacement shaft
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
1404MRKA replacement shaft