4pcs Double Ended Self Tightening Wrench Multifunctional 60HRC High Hardness 8.

Feature: \n 1. 60HRC: Self tightening spanner is made of high hardness steel forged to 60HRC, impact resistant and wear resistant.\n2. SAVE POWER: Length is 270mm, thickness is 8mm, clamping range is 8 to 22mm, suitable for nuts of different sizes, 14 to 22mm. Utilizing the principle of leverage, it saves more power.\n3. PREVENT SLIPPING: Universal self tightening wrench is designed with unique teeth and protection threads, smoothly to use and not easy to slip.\n4. EASY OPERATION: Simply align the hole of the wrench with the nut and you can do many jobs without changing to a different size wrench.\n5. APPLICATION: Double ended wrench is suitable for home decoration, construction, carpentry, automotive, bike, motorcycle repair and home maintenance. \n\nSpecification: \n\nItem Type: Double Ended Self Tightening Wrench\nMaterial: Steel\nTotal Length: Approx. 270mm / 10.6in\nApplicable Range: Approx. 8-22mm / 0.3-0.87in\nUsage: Wrench for Holding Nuts of Differen: