23 PCS Flex Head Ratcheting Wrench Set Metric and Standard & SAE with Color Ring. Flex Head Ratcheting Wrench Set with Color Ring (Metric&SAE). 23-Piece Complete Set: This ratchet wrenches set includes a metric wrench set with sizes: 6mm, 8mm, 9mm, 10mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, and an SAE wrench set with sizes: 1/4″, 9/32″, 5/16″, 11/32″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4. This combination wrench sets also comes with one bolt gauge. Each wrench features laser-engraved size markings that are durable, clear and accurate. Color-coded rings are designed for quick size identification, making it easy to find the wrench you need. Premium Material: Crafted from premium chromium vanadium steel, this open end wrench set features four-layer precision plating to enhance hardness, toughness and impact resistance. Treated with phosphating, blackening and black electrophoretic coating, it provides superior rust and corrosion resistance for long-lasting durability. Ratchet Wrench Set Features: Designed with a 180° rotating head for flexible operation in narrow spaces. The 72-tooth ratchet structure requires only a 5-degree swing angle for smooth operation. The 12-point box end provides firm grip and stable torque, allowing easy tightening and loosening of bolts and nuts without slipping or rounding. The reinforced thickened torque core ensures durable performance and withstands over 10,000 working cycles. Unique Storage Case:This portable tool box has a thickened outer shell for superior sturdiness, impact resistance and durability. The inner groove design holds each tool firmly in place. It comes with a practical gauge for precise measurement of hex nuts and bolts. Clear size markings on the case allow for quick retrieval and easy storage of wrenches. Wide Application: The flex head ratcheting wrench set metric and standard have a wide range of application scenarios, including motorcycle repair, auto repair, home projects, bicycle repair, machinery repairs, garage engineering. 23PCS Flex Head Ratcheting Wrench Set Metric & SAE. 12 Point/72 Tooth/5° Arc Swing/Thickened Torque Core. 72-tooth ratchet only needs a 5° swing angle, ideal for narrow spaces. The 12-point design delivers firm grip and reliable torque, easily tightening or loosening bolts and nuts without slipping. Thickened torque core boosts strength and durability for over 10,000 uses. Rainbow Color Finding System. Each wrench has a color ring with a rainbow color-coding system. The models are clear at a glance for quick access. Wrenches adopt CRV material with 4-layer fine plating to boost hardness. Laser engraved size marks are clear, wear-resistant and easy to identify. Rust and Corrosion Resistant. Rust & corrosion resistant, scratch and wear proof. The matte surface is fade-resistant, oil-proof and easy to clean for longer service life. Double head design: open end on one side and ratchet end on the other. It fits hex nuts closely to effectively prevent slipping. 1:1 Equal Proportion Design. Toolbox features a 1:1 custom-fit design that securely holds each tool in place and prevents slipping. Size markings are clearly labeled inside, with dedicated storage for measuring tools, keeping all tools organized and free of clutter. Tool box is sturdy and durable, no need to worry about breakage. Measuring Tools How to use. Use a gauge to measure the nut size. Place the 60° open end of the gauge close to the hexagonal nut and clamp both sides. Select the corresponding wrench. The value on the scale that holds the corresponding nuts on both sides is the size of the wrench used. We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. We are always working hard to ensure your package arrives as soon as possible. We do not accept P. Please provide a physical address. We try our very best to make sure every customer is completely satisfied. If there’s a problem, message us! We’re happy to help.