8-Piece Metric Set: This comprehensive set includes the most essential metric sizes (8mm, 10mm, 11mm, 12mm, 13mm, 14mm, 17mm, 19mm), covering a vast majority of common automotive and machinery fasteners. The included metal storage socket rail keeps your socket set organized, portable, and ready for action, saving valuable time and preventing lost tools. Impact Socket Set: Engineered from hardened and tempered Chrome Vanadium Steel (CRV), this 8-piece set is built to withstand the high torque of impact wrenches and daily professional use. The deep well design provides superior grip on exposed bolt threads and fasteners, making it an indispensable mechanic tool for any garage tool collection. 6-Point Design & Maximum Durability: The 6-point flank drive design offers maximum contact with fastener heads, drastically reducing the risk of rounding off stubborn bolts and nuts. Chemically blackened for superior corrosion protection, these impact sockets resist rust and wear. Impact Wrench and Ratchet: Designed specifically for high-torque applications, this set is the perfect impact driver socket set accessory for your impact wrench and standard ratchet. The 3/8" drive is the versatile industry standard, offering the ideal balance of strength and access for a wide range of automotive and mechanical tasks, from suspension work to engine repair. Professional Toolkit: Elevate your tool set with a professional-grade socket set that delivers exceptional value without compromising on quality. Whether you are a seasoned mechanic building out a professional socket set or a DIY enthusiast seeking mechanics' tools that can handle serious projects, this Dunnet Tools set provides the reliability and performance you need to get the job done right.