Having reliable and dependable tools can make any mechanic’s or maintenance engineer’s life easier, so be sure to find a home in your tool box for the STEELMAN PRO 78412 12-Piece 1/4-Inch Drive Deep 6-Point Metric Socket Set. Constructed of durable and heavy-duty chrome vanadium steel, these sockets have the strength required for high torque jobs and will fit onto any 1/4-inch drive ratchet, torque wrench, extension bar, or adapter. These sockets all feature a rust and corrosion resistant high polish chrome finish that not only looks good but is easy to wipe clean of dirt, oil, and grime. Their deep well design allows these sockets to access fasteners in slight recesses without an extension bar as well as nuts on extended bolts. The sockets’ 6-point design grips the sides of fasteners and not the corners, reducing wear and the chance of slippage or rounding the fastener. Easy to read size markings are laser etched onto the steel making it simple to identify the socket you need without the worry that the markings will wear away or rub off with use. Set includes the following metric sizes: 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, and 13mm. Rated to meet or exceed ANSI / ASME performance requirements for hand tools, these can handle tough use in any professional or home shop / garage.