Check the listing for details. 12mm Ratcheting Wrench Ratchet Box Ended Open End Spanner Black-Silver. Condition: New. Listed at 17.59 USD. 1. This ratchet open-end wrench is made of heat-treated chrome-vanadium steel with an electrophoretic black finish for high strength, oil-proof, rust-proof, and corrosion-resistant. Its extended and widened hollow handle design makes it easy to grip and durable.2. The 72-tooth precision ratchet gear only requires a 5° rotation to move fasteners, and the 10° safety angle reduces the risk of hand collisions, speeding up work and improving efficiency. The 12-angle open-end wrench ensures precise and tight engagement, reducing wear and preventing slippage.3. This double-ended open-end ratchet wrench is widely used in home repair, appliance repair, mechanical repair, motorcycle, bicycle, and automotive repair. It is suitable for quick work in confined spaces, allowing for rapid removal and tightening of hexagonal bolts and nuts.4.