3/8″ Dr. Hex Bit Socket, 4mm

* Heat Treated Socket Bases for Durability and Serviceability * Professional, Full Polish Chrome * SAE/Metric/Torx: Metric * Fastener Size: 4 mm * Drive Type: Hex * Drive Tang Size: 3/8″ * Length Format: Standard * Dim. A: Drive End: 0.688″ * Dim. C: Overall Length: 1.653″ * Dim. B: Nose Diameter: 0.590″ * Dim. D: Bit Length: 0.984″ * Exposed Bit Length: 0.625