this flexiroc T50 IS EQUIPPED WITH THE cop 3060 Drifter and is currently set up to operate GT60 Drill steel. No maintenance info on hammer rebuild history, engine has had a new head installed 5,000 hours ago with other major work done but no records available as unit came from another client. Unit starts, runs and works well. The engine has also been deleted back to a Tier 111. It functions well., Interior