Features: Powerful Substancemail: Produced from search engine speed steel with quenching and smithing, this port increases hardness by 30% and extends tool durability by oneandhalf times, ideal for strong applications. Firm Hold Planumberebog: Features a standard opening plan with strong clamping force to stop slipping, ensuring high concentricity and agreement with various automobile and mechanical repairs. Against Oxidation Facemail: Dealt with lampblack phosphating, it resists oxidation and executes entering temperatures from 20℃ to 80℃, suitable for outdoor and humid conditions. Multiple Measurements Availablemail: Covers measurements from 6mm to 30mm, accommodating different screws and couplings, excellent for professional technicians and enthusiasts. Transportable Storage Planumberebog: Thin structure includes a polystyrene storage box for easy transport and organization, ideal for mobile work and frequent travel. Specifications: Substancemail: Search Engine speed steel Processecond: Quenching smithing parameterebog: Dimensionsecond: 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 27mm, 30mm Selling characteristicsecond: Thickened plan, can endure moment up to 300N·m Package Includes: -half thickened sleeve × 1 (specials available) Plastic storage box × 1 note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you will not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color about the item.