Aztec Shark Brake Rotor Tool Features Ergonomic 6 function multi-tool to cover a range of disc brake specific tasks Lock ring wrench for external splines Rotor truing fork to straighten warped or damaged rotors Disc Rotor measuring gauge for Aztec, ShimanoR, HopeR, SramR and MaguraR Disc Pad measuring gauge for ShimanoR Hydraulic brake piston press to reset the piston and spread the disc pads 5mm hex key extension to increase leverage when access is limited