Includes 10-pc.

1/4 in.

drive inch hex bit sockets: 5/64, 3/32, 7/64, 1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16 in.; 10-pc.

1/4 in.

drive metric hex bit sockets: 2, 2.5, 3, 4, 4.5, 5, 5.5, 6, 7, 8 mm; Socket rails S2 steel bit is press-fit into the socket for a straight, permanent connection that can't loosen over time 6- sided hexagonal tip is machined to precise tolerances for an exact fit with hex fasteners Large, clear die-stamped size marking is easy to read and can’t wear off Four detent grooves provide a secure connection with the drive tool and a drilled through-hole allows locking on with retaining pin Polished, chrome-plated finish easily wipes clean and is highly resistant to corrosion Beveled inner rim of the socket opening helps guide it smoothly onto fasteners Twist-to-lock socket rail organizes and securely holds sockets in place, both for in your toolbox and on the go