No Moving Parts That's right, there are no moving parts - at the end of a backream you simply replace any worn teeth and the EXTReam™ is ready to go again. The EXTReam™ has proven itself in field tests in cobble, soft to medium rock, and hard rock. Although the EXTReam™ will work in other conditions, it performs best in tough, rocky conditions. We are confident the EXTReam™ will far surpass your expectations in how well it will perform.	12" reamer 8" reamer
Field Repairable The design of the EXTReam™ is a true horizontal rock reamer. It uses the same type of rock teeth as the INCREDIBIT®. We supply two types of teeth with the EXTReam™: 1) a pointed tooth for softer rock, and 2) a rounded tooth for harder rock. Care should be taken to change the teeth when they become worn or broken.
Versatile Keeping the proper mud flow at the front of the EXTReam™ is very important particularly in soft to medium rock or when conditions such as clay, chalk rock, etc. are encountered. The EXTReam™ is delivered from the factory with most of the side and rear water ports plugged which forces most of the flow out the front to properly mix the cuttings. We supply a variety of different size nozzles and plugs that can be used to reconfigure the water ports based upon the volume of mud being pumped and the conditions encountered during the pilot bore. When backreaming in conditions where clay, shale, chalk rock, etc. are encountered, we recommend using some type of con-det or other substitute to assist in keeping the cuttings from sticking to the reamer.	16" reamer
Easy On Your Machine Another important issue is to not rush the backreaming process. The EXTReam™ works best with low pullback pressure and low rotational torque. Decrease the rotation when encountering extremely hard rock conditions. Allow the EXTReam™ to do it's job.