Jentech Drilling Supply Inc is a division of Di-Corp that services the Groundwater, Mining, and Mineral Exploration industries throughout the USA. We specialize in helping our customers implement … Jentech Drilling Supply Inc is a division of Di-Corp that services the Groundwater, Mining, and Mineral Exploration industries throughout the USA. We specialize in helping our customers implement drill systems from the “Top Head to Bit”. Jentech carries a full line of drilling products from the top manufacturers in the world, always working with the latest in technology and productivity. As a manufacturer and supplier, we aim to provide the best product available for each drilling application. We stand behind the products we sell/manufacture with service and reliability. So go ahead… “Run Us into the Ground”.