R32-76mm Integral Reaming Drill Bit

Achieving a clean, parallel cut hole underground requires tools that can handle punishing rotational torque without catastrophic button failure. Bloom's R32-76mm Integral Reaming Drill Bit is engineered for tunnel contractors who refuse to compromise on advance rates. Machined from high-alloy steel and premium tungsten carbide matching the material grades of internationally well-known brands, this integral reamer smoothly expands standard pilot bores up to a precise 76mm blasting face.

The structural durability of Bloom reamers stems from our fully automated CNC machining and military-grade heat-treatment processes, ensuring absolute quality consistency across every batch. To eliminate premature button drop-outs—a common failure in broken ground—we utilize the exact same advanced thermal-insertion (hot-pressing) procedures as Tier-1 global brands. This tight metallurgic bond keeps the carbide matrix secure, delivering faster penetration speeds, exceptionally straight trajectories, and an extended drilling lifespan.

While this R32 76mm model is optimized for standard cut holes, Bloom manufacturers a comprehensive reaming range from 29mm up to 102mm, with custom larger reaming equipment available upon request. Contact our technical engineering team today to match the perfect pilot and reamer profile to your geology.