Features TORQUEPLUSâ„¢ fastening system: allows greater torque and makes tightening easier, while reducing the risk of fastener rounding Chrome vanadium construction: made from the highest quality alloys for long-term durability Complete set with 7 sizes: the right size for any job, every time Durable, organised wallet: to keep your spanners organised, so you can grab what you need and get back to work Specifications Sizes: 6 x 7, 8 x 9, 10 x 11, 12 x 13, 14 x 15, 16 x 17,18 x 19mm Materials: chrome vanadium