This tool is designed around a rugged, one-piece mandrel constructed of high-strength alloy steel with ample tong space for handling ease and extra length for recutting connections. The rig-replaceable, integral blade sleeves are available in three types (listed below).

The Ezy-Change Type II is a popular choice for remote areas or where storage problems exist. One mandrel series can be used for several different hole sizes, reducing the need for a large mandrel inventory on location. The sleeves are easily changed on the rig floor either when changing hole size or when the sleeves have worn under gauge. This versatility also allows a convenient way to change the type of stabilizer wear surface to match drilling conditions. A simple plate-type sleeve breaker (available on request) enables easy make-up and breakout.

• The 17 ½ inch and smaller sleeves feature three spiral blades; four straight blades for larger sizes
• Maximum annular flow area
• Multiple hardfacing options
• Robust one-piece mandrel design
• Ample length for multiple recuts

• Remote or space-constrained locations
• Mild to medium packed hole assemblies
• Pendulum assemblies
• Directional drilling assemblies
• Control harmonics and drill collar whipstock