Profile: GXT, Inc. manufactures and distributes professional automotive tools & equipment. Our brands include Ferret Instruments, Leitenberger, MPC Publishing, Protech and Spin. We also deal with nitrogen tire filling system, fuel injection cleaning systems, headlight alignment equipment, and various shock and strut tools. Our products include specialty tools, battery testers, engine analyzers, opacity meters, gas analyzers, timing lights, and headlight alignment tools.