Performance 1/2 To 3/8 Inch Drive Adapter - M963 Part #: M963 Line: PFM Performance 1/2 To 3/8 Inch Drive Adapter Limited Lifetime Warranty Material: Steel Quantity: 1 Socket Size (in): 3/8 Inch Overall Length (in): 1-7/16 Inch SAE Or Metric: SAE Drive Size (in): 1/2 To 3/8 Inch Wobble: No Impact: Yes Show More Show Less