The Ridgid 57003 faucet and sink installer is a Multi-Purpose under-sink plumbing tool that lets you work faster, easier and more efficiently on supply lines, fittings and nuts. This faucet wrench fastens and removes plastic Basin nuts and supply line nuts. A great addition to any toolbox, its short body is ideal for clearance in tight spaces. The cubed insert features a reinforced body for hard to break fasteners with ⅝”, ¾â€, ⅞”, & 1” wrenches for supply lines and clamp nuts. The cylindrical insert features a ⅝” deep welled sock for common faucet design and a 3 & 4 slot strainer Basket retainer. The plastic insert features a reinforced body for hard to break fasteners with a 2, 3, 4 & 6 tab faucet nut wrench.