Efficient Wrench: This combination wrench is set up with 72 anti-slip tooth, capable of clamping round nuts within 85% of wear, anti-slip property increased by 30%. 5 degrees swing to help tighten bolts efficiently, and are suitable for tight spaces. Sturdy and Durable: This gear ratcheting wrench is forged from high-quality chrome vanadium steel, black electrophoretic paint after phosphating blackening, has excellent rust and corrosion resistance. The wrench hardness up to HRC 50 makes the wrench able to bear more force. Metric Size: 9-piece metric ratchet wrench sets include 8mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 17mm and 19mm, which meet most of your needs. And each wrench has clear dimensioning for quickly identifying the size you need. Easy Carry: The combo ratchet wrenches set comes with a premium organization bag, each wrench storage bag is marked with the corresponding wrench size to keep all wrenches organized. Hanging ropes for easy carry and storage. Comprehensive Application: WORKPRO combination wrench sets have a wide range of application scenarios, including motorcycle repair, auto repair, home projects, bicycle repair, machinery repairs, garage engineering, and so on. Best Gift for Father, Grandfather, Boyfriend, Brother for Father’s Day, Birthday, Anniversary, Valentine’s Day, Christmas, etc. Open End / Box End.