Check the listing for details. Tekton 3/8 Inch Drive Hex Bit Socket Set, 10-Piece (3-10 mm) SHB91102. Condition: New. Listed at 39.99 USD. TEKTON 3/8 Inch Drive Hex Bit Socket Set, 10-Piece (3-10 mm) | SHB91102Includes 10-pc. 3/8 in. drive hex bit sockets: 3, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10 mm; Socket railS2 steel bit is press-fit into the socket for a straight, permanent connection that can't loosen over time6-sided hexagonal tip is machined to precise tolerances for an exact fit with hex fastenersLarge, clear die-stamped size marking is easy to read and can’t wear offFour detent grooves provide a secure connection with the drive tool and a drilled through-hole allows locking on with retaining pinPolished, chrome-plated finish easily wipes clean and is highly resistant to corrosionBeveled inner rim of the socket opening helps guide it smoothly onto fastenersTwist-to-Lock Socket Rail organizes and securely holds sockets in place, both for in your toolbox and on the go