3/8" Dr. 6 Pt. Standard Deep Metric Socket, 17mm Surface drive technology reduces fastener rounding. Chamfered opening to guide fastener into socket. Large hard-stamped size identification. Double line (SAE) and knurled (metric) ring to easily identify standard vs. Metric sockets. Full polish chrome finish cleans easily and resists corrosion. Meets or Exceeds ASME B107.5M. SAE/Metric/Torx: Metric. ASME Specification: B107.5M. Fastener Size: 17 mm. Drive Type: 6 Point. Drive Tang Size: 3/8”. Length Format: Deep. Dim. A: Drive End: 0.937”. Dim. C: Overall Length: 2.500”. Dim. F: Length to Shoulder: 1.142”. Dim. D: Bolt Clearance: 0.335”. Dim. E: Wrench Depth: 0.398”. Dim. B: Wrench End: 0.937” 80399