* description: The roller reamer (drilling reamer) is used for all kinds of reaming stabilization in drilling operation, especially the function of stabilization in drilling of the abrasive formation. It is a hot-sale tool for hole size from 4 5/8â?� to 26â?�. Additionally, it can be used in different hole when same body is equipped with different bearing block and rollers. * feature: A. The body is made of high quality alloy steel, fully heat treated to 285-341brinell hardness and 54j minimum impact strength. B. Rollers can be changed easily at the well.
