Perfect for tackling constrained workspaces and complex mechanical repair jobs, this comprehensive crowfoot wrench set is a must-have addition for mechanics, automotive technicians and DIY repair lovers. This all-inclusive kit comes with abundant specifications to cover diverse fastening needs, containing 11-piece metric wrenches ranging from 10mm to 22mm and 11-piece SAE standard sizes spanning from 3/8'' to 1''. It allows you to effortlessly deal with various bolts, nuts and fasteners across different maintenance scenarios, fully preparing you for daily assembly, disassembly and overhaul tasks. Each crowfoot wrench is forged from premium high-strength chromium-molybdenum steel. The rigid CR-MO steel structure delivers incredible overall toughness and stable clamping force, effectively preventing slipping during operation and resisting deformation even under heavy torque, sustaining reliable performance for long-term repeated use. Every wrench is finished with premium chrome-plated mirror surface treatment, featuring a sleek glossy texture that upgrades visual appeal while adding powerful corrosion and rust resistance to withstand harsh working conditions. Designed with a universal 3/8-inch square drive, the wrenches seamlessly pair with 3/8'' ratchets, torque wrenches and extension bars. Additionally, the set is equipped with 3-inch and 6-inch drive extension bars, assisting users to access narrow, hard-to-reach corners and finish precise repairs efficiently.