​DR roller reamer - Downhole tools - Dongying Xinwo petroleum machinery Co.,Ltd
DR roller reamer is designed for various reaming operation but particularly for stabilization purpose when drilling in very abrasive formations. The same body by changing roller assembly, will suit a wide range of hole sizes. The upper and lower axle seat is easy to replaceable on platform. There is a “T” groove between axle seat and main body, so the structure is more stable and safe.
Hard facing of reoller:
Type T: Soft formation
Type B: Hard formation
Type F: Medium hard formation

​DR roller reamer