12 Point Standard Metric Sockets 3/8 in Dr 15 mm Opening Crescent 12 Point Standard Metric Sockets Drive Type: 12 Point No. of Points: 12 Type: Socket Material: Alloy Steel Language: English Measuring System: Metric Finish: Full Polish Chrome Wt.: 0.12 lb Tip Type: 12 Point Drive Size [Nom]: 3/8 in Opening Size [Nom]: 15 mm Tip Size [Nom]: 15 mm Width [Nom]: 0.82 in.