Custom 4-blade PDC bit Mining
our factory provides professional
custom
4-blade non-core PDC bit
mining
manufacturing services. We supply 3 mainstream sizes:78mm, 79mm,80mm, fully compatible with
73mm standard drill rods
. Both internal thread and external thread can be customized to match various imported and domestic horizontal drilling equipment, effectively avoiding interface mismatch, looseness and drilling shaking.
Made of tempered 42CrMo steel with integral casting structure, the bit features uniform stress distribution and regular drilling holes. It is widely used in marble & granite cutting, horizontal cross drilling and mine roadway drilling. The optimized spiral bit body balances chip removal capacity and drilling stability, ensuring fast penetration and high drilling accuracy. As a direct factory, we support size fine-tuning, thread customization and working condition optimization, providing highly matched PDC bits for various stone quarrying and mining horizontal construction projects.