Metric Combination Wrench Set,12 Points Box and Open Ends Spanner Set for Mechanics With Storage Pouch Specifications: Type: 12-point Measurement Standards: Metric, Application: The wrench set is easy to use in a small space, perfect for cars, bicycles, equipments, professional maintenance. Features: .Material pull body 45# Material: high carbon steel.Surface treatment: polished chrome .Heat treatment hardness .Pressure and Erosion Resistant .Good abrasion performance and rust prevention .Suitable for Long Time Industrial Usage .mainly used in auto repair machine repair. Package Including: Combination Wrench Set 8pcs(8-24)=8mm,10mm,12mm,13mm,14mm,17mm,19mm 10pcs(8-24)=8mm,10mm,12mm,13mm,14mm,17mm,19mm,22mm,24mm 12pcs(8-22)=8mm,10mm,11mm,12mm,13mm,14mm,15mm,16mm,17mm,18mm,19mm,22mm 12pcs(6-24)=6mm,8mm,9mm,10mm,11mm,12mm,13mm,14mm,17mm,19mm,22mm,24mm 14pcs(8-24)=8mm,9mm,10mm,11mm,12mm,13mm,14mm,15mm,16mm,17mm,19mm,21mm,22mm,24mm