GTUMX Diamond Bit Series GTUMX Diamond Bit Series Designed for Shallow Holes And Conventional Drilling The GTUMX is designed for shallow holes and conventional drilling, and to be used in exploration and geo technical applications. The ability to drill faster with high penetration rates and outperform existing bit technology in a wide range of ground formations makes the GTUMX ideal for customers seeking a cost-effective alternative to their current bit selection. Product