R32 76mm Reaming Button Bit - Heavy-Duty Threaded Rock Drill Bit

Engineered for precision hole enlarging and bench drilling, the R32 76mm Reaming Button Bit delivers superior penetration rates and extended service life in demanding rock conditions. Featuring high-grade tungsten carbide inserts and a robust forged alloy steel body, this bit ensures efficient chip removal, straight hole alignment, and reduced downtime during underground mining, tunneling, and construction projects.

Key Features

• Optimized Flushing: Advanced face design and strategically placed flushing holes maximize air/water flow for rapid cuttings evacuation.
• Premium Tungsten Carbide: High-wear-resistance button inserts ensure prolonged sharpness and resistance to thermal stress.
• Precision Threading: Heavy-duty R32 thread profile offers secure coupling, low energy loss, and easy uncoupling.
• Robust high-strength forged alloy steel body for demanding drilling conditions
• Spherical and ballistic insert options for different rock formations
• Flat face, concave, and center drop designs available
• Compatible with standard top hammer rock drills

Technical Specifications

Applications

• Underground Mining: Enlarging pre-drilled pilot holes for blasting, pipe pushing, or anchoring.
• Tunneling: Precision hole enlarging and development drilling in tunnel projects.
• Bench Drilling: Efficient reaming of pilot holes in surface bench operations.
• Quarrying: Large-diameter hole drilling in natural stone extraction.

FAQ

Q: What is the main application of the R32 76mm Reaming Button Bit?
A: It is designed for enlarging pre-drilled pilot holes in rock drilling, widely used in underground mining, tunneling, bench drilling, and quarrying to create larger diameter holes for blasting, pipe pushing, or anchoring.

Q: What rock conditions is this bit best suited for?
A: With high-grade tungsten carbide inserts and a heavy-duty forged alloy steel body, it performs well in medium to hard and abrasive rock formations. Spherical inserts offer maximum durability in hard rock, while ballistic inserts provide faster penetration in softer ground.

Q: Is the R32 thread compatible with standard top hammer drilling equipment?
A: Yes. The standard R32 thread profile ensures compatibility with conventional top hammer drill rods, shank adapters, and coupling sleeves across major machinery brands.