3/8″ Drive 6 Point 120XPT SAE/Metric Standard and Deep Mechanics Tool SetFeatures and Benefits: 120 Position, 3″ ratcheting arc ratchet with teardrop low profile head and flush mounted on/off switch for improved access; Full Polish Chrome Sockets With Large Hard Stamp Size Markings; Knurled Full Polish Extensions; Sockets Feature Surface Driver Technology To Reduce Fastener Rounding; Meets or Exceeds ASME B107.1, B105.5M, B107.10.