This Teng Tools 8 piece AF combination spanner set consists of spanners which have the same dimension at both ends. One end has an open head and the other has a 12-point ring head which is set at a 15 degree angle to increase ease of access to the fastening. The spanners are manufactured from chrome vanadium steel for strength and durability and have a satin finish and polished heads. Manufactured to DIN 3113A standards. Supplied in a handy storage tray. Contents: 8 x Combination Spanners 5/16 3/8 7/16 1/2 9/16 5/8 11/16 and 3/4 AF. Specification Dimensions: 265 x 142 x 50mm.Weight: 1.0kg.PTDTENTT3592