4pcs Double Ended Self Tightening Wrench Multifunctional 60HRC High Hardness 8 To 22mm Spanner

60HRC: Self tightening spanner is made of high hardness steel forged to 60HRC, resistant and wear resistant. 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. PREVENT SLIPPING: self tightening wrench is designed with unique teeth and threads, smoothly to use and not easy to slip. Item Type: Double Ended Self Tightening Wrench Material: Steel Total Length: Approx. 270mm Celsius 10.6in Applicable Range: Approx. 8-22mm Celsius 0.3-0.87in Usage: Wrench for Holding Nuts of Different Sizes. Applicable People: Outdoor Enthusiasts, Automobile Repairers, Home Users