Portable CR-V Steel 6-25mm Adjustable Nut Wrench V-Groove Double Head Open End Spanner Repair Hand Tools for Automobile Mechanical Bicycle MaintenanceFeature:1. After heat treatment to obtain high hardness and high torque steel.2. Surface spray treatment, anti-rust and corrosion resistance.3. The serrated opening enhances the grip and bite force.4. The slender handle increases the pinch point.5. Double ends, 6-14mm (9/16"-7/32", small end) and 14-25mm (1"-9/16", big end).6. There is a hexagonal screw opening at the handle, which can be screwed with 8mm/0.31in hexagonal screws.7. Widely used in the maintenance tasks of automobiles/machinery/bicycles/motorcycles. Specification:Suitable screw range: 6-25mm/0.24-0.98inMaterial: Chrome vanadium steelSize: 250x48mm/9.84x1.89inNote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2mm measuring deviation due to manual measurement. 1 X Wrench