Our eBay Store About Us Engineered specifically for use with impact tools, using the most up to date industrial specifications. Manufacturer Part Number: 2021MD Features6 point Metric Socket1/2″ Drive1 piece deep impact socketEngineered specifically for use with impact toolsMade of high quality alloy steel (chrome-molybdenum) We try to describe our items as accurately as possible. Feel free to e-mail us with any questions you may have. E-mails sent in the evening or over the weekend will be answered as quickly as possible the following business day.