Atlas-Copco ROC D7-11

3.5 - 4.5 Inch Class Drill COP 1838 Drifter CAT 3126B Diesel Engine High Productivity Quarry Drill Exceptional Boom Reach Permits More Holes to be Drilled from Each Set-Up. Unit is designed with low center of gravity and high ground clearance which allows quick and safe tramming even in difficult ground conditions Frame Hours unknown - Estimated to be 8,000 - 10,000 3970 Percussion Hours