Proto® J4990-6MXL Extra Long Standard Length Socket Bit, Metric, 6 mm Bit, 3/8 in Square Drive, 13/64 in
Item #BC398227

Proto® Socket Bit, Extra Long Standard Length, Measurement System Metric, 3/8 in Drive, Square Drive, 6 mm Bit, Hex Bit, 13/64 in Bit Length, 6-3/32 in Overall Length, 6 Points, Heat Treated Alloy Steel, Full Polished Chrome
  • Bit holders have a hex opening to hold the bit allowing the bit holder to take the full load of torque
  • Two-piece design allows replacement of worn bits
  • Made using a heat-treated alloy for wear resistance which helps minimize distortion for a long-life
Bit Length13/64 in
Bit Size6 mm
Bit TypeHex
Drive Size3/8 in
Drive TypeSquare
FinishFull Polished Chrome
MaterialHeat Treated Alloy Steel
Measurement SystemMetric
Number of Points6
Overall Length6-3/32 in
TypeExtra Long Standard Length
WarrantyLifetime