Stop bolt spin during toilet removal with the one and only "Jam-Bar" lock wrench. Corrosion and thread damage are un-common thus nut removal can be a challenge especially when the bolt starts to spin. Unlike conventional tools the flat blade easily slips in below the nut and grips the bolt. The Patented "Micro Tooth" blade locks the bolt in place as you work off the nut. The more the bolt tries to spin the tighter the grip A real time saver for pros and DIY.