Why Your HDD PDC Bit Performs Poorly: The Impact of Blade Count, Cutter Size & Back Rake
Blade count, cutter size, and back rake are the three key factors that determine HDD PDC bit performance:
More blades = higher stability, lower penetration rate
Larger cutters = higher aggressiveness, faster wear
Greater back rake = stronger durability, lower cutting efficiency
The optimal combination depends on formation hardness and drilling conditions.
Daily Tungsten Carbide Powder Price Report | Apr.9,2026
Tungsten Carbide powder prices continue to climb, having already surpassed the threshold of 2,000 RMB (approximately 289.85 USD) per kilogram. The national tungsten mining quota for 2026 has been set at 115,000 tons, representing a further 8% reduction compared to 2025. This marks the third consecutive year of tightening quotas. Consequently, Tungsten Carbide powder prices […]