ROHLOFF Revolver 3 Revolver 3 Universal Chain Riveting Tool ​ The universal chain rivet tool Rohloff Revolver 3 fulfils the function of all previous chain locking tools including the for 10-speed and 11-speed chains. Only with the universal tool Revolver 3, a perfect opening and closing of all switching chains and single speed chains on the market is possible. The chain is firmly clamped in the tool during every step, which guarantees precise work: thanks to the use of high-quality materials and the use of carbide, the Revolver 3 is designed for a long workshop life.