8-1/2" M433 8-blade PDC bit
Bit Size: 8-1/2 inch
IADC Code: M433
Blades: 8
Cutter Size: φ13 mm
8-1/2" M433 8-blade PDC bit :
Product Specification
· Bit Size: 8-1/2"
· IADC Code: M433
· Blades: 8
· Cutter Size: φ13 mm
· Cutter Quantity: 68
· Nozzle Quantity: 4
· Gauge Length: 50 mm
· Connection: 4-1/2” API REG
· Net / Gross Weight: 59 kg

Product Description
The 8-1/2" M433 8-blade PDC bit features a tungsten carbide matrix body with 20% improved erosion resistance, dual-row φ13mm cutters, and FEA/FBS-optimized cutting structure — delivering superior impact/abrasion resistance across medium and interbedded formations.
Features
· Advanced Tungsten Carbide Matrix Body: 20% improvement in erosion resistance compared to previous matrix bits — less cutting structure and bit body damage.
· 8 Blades + 68 φ13mm Cutters: High blade density for improved cutter distribution and formation contact.
· Dual Row Cutter Layout: Extends aggressiveness and durability.
· Interbedded Lithology Advantage: Provides multiple advantages in interbedded formations with variable hardness.
· Enhanced Bit Stability: BHA shock and vibration mitigation for smoother drilling.
· Anti-Balling Design: Increase cleaning and reduce balling in sticky formations.
· Advanced PDC cutter Technology: Perfect performance on impact strength resistance and abrasive resistance.
· FEA-Optimized Cutter Layout: Optimized distribution and layout reduces NPT and improves drilling efficiency.
· FBS-Optimized Cutter Angles: Optimized in both axial and radial directions for stronger aggressiveness and durability.
· DOC Optimization:Depth of cutters calculated from field experience for rational formation penetration.













