The set includes: 1/4, 3/8, 1/2, 11/16 SAE; 10, 12, 13, 17 mm; 5/16 _ 8mm, 7/16_ 11mm, 9/16_14mm, 5/8_16mm, & 3/4_19mm, Universal sockets a total of 13 sockets.
Covers both metric and Sae. When you have rounded, rusted, chewed, nuts and bolts this is a great set to have around when you need it. On occasion when the bolt or nut is too stubborn to turn, the socket may contribute to rounding the bolt or nut. The set is made to grip the nut or bolt so that you have an opportunity to turn it out.
