Reliably cuts casing, pilings and other round, hollow tube from the inside. Cutting below the mudline (BML) is made safe and efficient with these unique tools. No external dredging or digging is required. Simply lower the ID Milling Machine into the cleaned pipe and begin your cut. Mactech’s unique ID Milling Machines are your solution to limited access, round pipe severing applications. Previous Slide Next Slide Close Gallery Internal Diameter Pipe Cutter Video