Manufacturer of downhole equipment for over 35 years, Drillstar Industries provides its customers worldwide with innovative d ... rilling, milling and fishing solutions. The Drillstar Z-Reamer is a compact, block-type PDC underreamer capable of high ratio hole opening. It can be used in a variety of applications, including directional casing-while-drilling and reaming-while-drilling. The Z-Reamer has shown its benefits for deep geothermal drilling and oil & gas drilling worldwide, enabling larger casings to be run to TD, and removing the need for long wiper trips. The Drillstar MUDHammer is the first downhole hammer on the market capable of drilling deep boreholes using weighted mud or recirculated water. It's a game changer for deep geothermal drilling, significantly cutting drilling time in hard or abrasive formations, such as granitic basement. Drillstar also has the capability and know-how to design and manufacture custom downhole drilling or fishing equipment to fit the specific needs of a given well. read more