PREMIUM MATERIAL: Metric Ratchet Wrenches Sets are made from premium chrome vanadium steel(Cr-V), drop-forged, heat-treated, hardened, all that will bring strength and durability. Chrome plated, mirror-polished finishing for anti-corosion and rust-resistance, long service life. 12PCS METRIC SIZES: 12 sizes you will need most often for this ratchet spanner set: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm. Our ratchet wrench set is mainly used to tighten or loosen nuts and bolts. The unique design can be widely used in various scenarios, such as home repair, pipeline repair, mechanical repair, car and bicycle repair. 180°FLEX-HEAD: The box end rotates 180 degrees to easily bypass obstacles. Close fit hex head prevents slipping while you work. HIGH-EFFICIENCY: The 72-tooth ratchet gear has a minimum working swing arc of 5°, which can meet the tough requirements of professional automotive technicians and industrial users. Best choice for working in tight spaces. EASY TO CARRY & STORE: All the Flex-Head ratcheting wrenches are packed well in a rolling bag for easy organization and convenient storage. Compact design makes it easy to store in your car trunk or tool cabinet., Weight: 3.417165061 pounds, Manufacturer: Twilight Garage