... wrench 40Cr-V steel. Surface treatment :Mirror Coating, Sub-Mirror Coating flexible socket wrenchMaterial: 40Cr-V steelSurface Mirror CoatingSizes: 6mm, 7mm, 8mm, 9mm ... to your order quantityOrigin: Ningbo, China MainlandMOQ: 500setsSamples: Charge 1/2 Ratchet Wrench