Isotech manufacture tools a variety of connection to meet your exact specifications. The tools and rods are used to drill mines and tunnels. Our drill rods are designed for small diameter drilling work using either rotary or rotary-percussive methods. They can be used successfully in both friable and fissured rock. High functionality and long service life is achieved by exact processing and finishing that produces the degree of hardness, the tool form and the toughness required to carry out the job at hand.