Features: Upgrade your drilling efficiency with these quick releases water drill connectors, featuring a aligned accuracy design for effortless bit changes and eliminating stubborn traditional disassembly struggles. Crafted from sturdy 45# steel with anti corrosions coating, these generic male/female adapters ensures long time performances across standard water drills and hole punching machines. Ideal for professional contractors, construction crews, and craft enthusiasts requiring frequent drill bit swaps during demanding projects. Perfect for high intensity drilling operations in construction sites, plumbing installations, or home renovations where rapid tool adaptation is critical. The compact 70x29.9mm (male) and 80x45mm (female) dimensions optimize workspaces efficiency while maintaining robust waterproof protections at connection points. Specifications: Materials:Metal Size: Male connector: 70x29.9mm/2.75x1.18inches, Female connector: 80x45mm/3.15x1.77inches Package Includes: 1Set Quick Releases Water Drill Connectors note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color. Thanks!