Underground Tools, Inc. offers one of the industry’s most comprehensive selections of premium quality directional drilling pipe for nearly every make and model of drill rig on the market. UTI drill pipe is readily available, and fits drill rig sizes from mini through maxi. Underground Tools drill pipe is made from top quality materials, with careful consideration given to precise threaded connections. In addition, HIWS drill stems Versions I and II are also available through manufacturer-direct distribution at UTI. All UTI products come with exclusive DirtS-mart technical service where questions are answered by a knowledgeable technical support team.