FTU-TB bicenter junk mill, dressed with carbide inserts, is designed to underream alluminium alloy plug bridge.
Bicenter junk mill consists of a body made of high-strength alloy steel and cutting-crushing braze of crushed tungsten carbide and carbide inserts and buttons in a nickel/brass matrix. Blades are overdrift for more efficient wellbore cleanout.
It has thread connection at the upper part of the body, and circulation ports and relevant watercourses for better cooling and more efficient removal of the cuttings at the lower face and the flank.