RB450 Series Rotary Drill Bit

Rotary drill bit

Minerza RB450 Series

Bearing type: Sealed journal bearing

Cutting structure: QX2-type tungsten carbide inserts

Bit sizes: 200–311 mm (7.88–12.25 in)

Weight range: 35–98 kg

Description:

The Minerza RB450 Series rotary drill bits are engineered for exceptional penetration and durability in hard and abrasive formations. Featuring sealed journal bearings, reinforced cone protection, and precision-balanced cutting geometry, they ensure reliable performance and extended service life under demanding rotary drilling conditions. The tungsten carbide insert structure provides superior wear resistance and optimized bottom-hole coverage, while the heat-treated steel body maintains strength under heavy loads.