This General Tools Adjustable Sink Wrench gives you the power to tackle all types of stubborn fittings, including spud, slip, lock & basket-strainer nuts. This plumbing wrench 10-1/4" size provides leverage for removing or tightening drainage slip nuts. The sink wrench's jaws are adjustable from 1" to 3" (25-76 mm) & feature a convenient notch for grabbing on to basket strainer lock nuts. It’s simple to use: first set the unit tight to the fitting, then tighten the wing-nut in order to lock the jaws together. The jaws are ungrooved to prevent impressions being left behind on different types of finishes & is safe for use on plastic, brass & other soft metals. This plumbing tool is zinc plated to prevent rust.