Calling all mechanics and automotive enthusiasts! The JMP Disco GRADUATO is a serious piece of professional equipment for testing and setting ignition timing on engines. This isn't some basic tool - it features a precision aluminum panel and rotating angle disk with a 171mm diameter and 6mm center bore. Works with both 2-stroke and 4-stroke engines, making it incredibly versatile for everything from motorcycles to cars to small engines. If you're tuning engines, diagnosing timing issues, or doing precision mechanical work, this tool gives you the accuracy you need. The build quality is professional grade, designed to withstand shop use while delivering reliable measurements every time. Product code LR 722.39.85 for those who need specific identification. Perfect for professional mechanics, serious DIYers, or automotive students learning engine timing principles. Much more precise than guessing or using makeshift methods - this gives you actual data to work with for proper engine setup. Whether you're working on performance builds, routine maintenance, or troubleshooting tricky timing problems, having the right tool makes all the difference. This is that tool for anyone who takes engine timing seriously and wants professional results.