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Proto® 3/8″ Drive Metric Hex Bit Sockets

  • 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
Part No.
Size
J4990-4M
4mm
J4990-5M
5mm
J4990-6M
6mm
J4990-7M
7mm
J4990-8M
8mm
J4990-9M
9mm
J4990-10M
10mm

  • Contact Heavy Maintenance Supply 205-384-5284 for more information