311,2mm (12 1/4″) A drill bit with polycrystalline cuttings, complete with hydraulic nozzles, with 5 blades, a cutter diameter of 19 mm, with a steel body for drilling in medium-sized rocks.

The 311.2mm (12 1/4″) A drill bit excels in medium-sized rock drilling. Its polycrystalline cuttings deliver exceptional hardness and wear resistance, ensuring long service life and consistent cutting performance. Hydraulic nozzles efficiently flush rock debris, preventing clogging and maintaining drilling speed. With 5 blades, it distributes cutting force evenly, reducing vibration and enhancing stability. The 19mm cutter diameter optimizes chip removal, while the steel body offers high structural strength to withstand harsh rock conditions. Together, these features boost drilling efficiency, minimize downtime, and ensure reliable operation in medium-rock formations.