Crescent introduces their newest line of professional mechanics hand tools， the X10 family. Crescent X10 ratchets， sockets and wrenches are designed for use in the harshest environments， whether on the jobsite， on the go in your work truck or in the factory. Crescent X10 mechanics hand tools are reliable will be there to help you get your work done faster. The 20-piece X10 3/8 in. Drive 6-Point Standard SAE/Metric Mechanics Tool Set includes 9 SAE sockets， 9 metric sockets， a ratchet and an extension. The black manganese phosphate finish allows for extreme corrosion resistance and smooth ground surfaces to reduce friction. The 84 tooth ratchet requires only 4.3° of movement， providing more efficiency and access in tight situations. This mechanic tool set is a perfect addition to any tool box or garage for the professional or DIYer.

Includes SAE sizes - 5/16 in.， 3/8 in.， 7/16 in.， 1/2 in.， 9/16 in.， 5/8 in.， 11/16 in.， 3/4 in. and 13/16 in.

Includes metric sizes - 9 mm， 10 mm， 11 mm， 12 mm， 13 mm， 14 mm， 15 mm， 17 mm and 19 mm

Superior strength from the specially formulated and heat-treated Crestoloy alloy steel construction

Black manganese phosphate finish for extreme corrosion resistance and smooth ground surfaces to reduce friction

84 tooth ratchet requires only 4.3° of movement， providing more efficiency and access in tight situations

Enclosed ratchet head design for improved reliability in the harshest environments

Teardrop low-profile head and flush-mounted lever is up to 21% slimmer than the competition

6-point sockets with off-corner loading technology reduces fastener rounding

High contrast colored rings on sockets allow you to quickly identify between SAE and metric sizes

Knurling on the ratchet and sockets give you better grip and control in slippery circumstances

Exceeds ASME performance specs

Backed by the Crescent limited lifetime guarantee