• 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