The Engine Brake Adjustment Tool for Cummins Engine is a versatile and necessary tool for any engine mechanic or owner of a Cummins power train. This unique tool replaces the traditional 3163530, 7mm feeler gauge, and offers an alternative for exhaust valve lash adjusting. Instead of using a traditional handle, it comes with a non-slip PVC one, ensuring a secure grip and easy control during adjustments. The innovative design of this tool allows for a more accurate and effective valve lash adjustment, reducing engine brake and improving fuel efficiency. Whether you're a professional mechanic or a do-it-yourself enthusiast, this tool is an essential addition to your engine maintenance toolkit.