R25 Thread Button Bit

R25 Thread Button Bits: Maximizing Uptime in High-Frequency Drilling

In marble and granite quarries, every minute of downtime for a bit change eats directly into your profit margin. Gdrills R25 drifting and tunneling button bits are designed to deliver a blistering penetration rate while surviving the relentless mechanical abuse of standard top hammer drifting rigs.

No More Thread Stripping: Engineered for Constant Uncoupling

Small-diameter R25 threads often fail because the intense frictional heat and frequent coupling/uncoupling cause premature thread stripping or breakage. To solve this, Gdrills applies a full-surface carburization and induction heat treatment to the entire bit body. This process introduces compressive residual stresses into the R25 thread root:

Enhanced Anti-Fatigue Strength: Increases thread service life by 35% compared to non-carburized bits.

Smooth Make-and-Break: CNC-cut thread profiles guarantee a precise fit with your drill rods, reducing vibration and thread galling.

Powered by World-Class Tungsten Carbide Inserts The secret to our High Penetration Rate lies on the bit face. We don't use recycled or generic alloy.

Optimized Button Configurations: Available with Spherical buttons (maximum wear resistance in hard granite) or Ballistic/Parabolic buttons (fastest penetration in soft-to-medium marble).

Exceptional Fracture Toughness: The advanced grain structure of our carbide prevents button chipping or catastrophic fracture even when encountering fractured rock strata or voids.

Fatigue-Resistant R25 Threads: Formulated via advanced surface carburization and shot-peening treatments, allowing the R25 threads to withstand high-frequency friction and repeated uncoupling without deformation or cracking.

Genuine Premium Tungsten Carbide Inserts: Equipped with global tier-1 brand tungsten carbide buttons, offering superior hardness and impact toughness.

Optimized for Dimension Stone Quarrying: Specially engineered face designs that prevent hole deviation, perfect for precise splitting and blocks extraction.

CNC-Machined Fluid Flow: Features deep, unobstructed flushing grooves to eliminate drilling dust quickly, reducing secondary wear on the bit face.

R25 Button Bits for Rock Drilling

• Test place: IRON ORE IN DAHONGSHAN,YUNNA,CHINA
• Test time: June 2024
• Rock formation: 60% magnetite, 40% hematite,gangue mineral is quartz.
• Hardness: Ore body F14-16, Flushing water PH-6.9-8.0
• Test model: Button bit R32-45mm
• Test result: 368 meters drilled and no buttons dropped off or broke

This testing was operated at Dahongshan Iron Ore, Yunnan, China, in June 2024, which proves that the hot-pressed button bit (R32-45mm) performance well under challenging geological conditions. Even though the rock was made from  60% magnetite, 40% hematite, with quartz gangue, and a rock hardness of F14-F16, the bit achieved an impressive 368 meters of drilling depth.

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