R32-51mm-Q9 Retrac Threaded Button Bit

ANTI-STUCK & HEAVY-IMPACT MATRIX:

• The Retrac Safety Lock: Engineered with deep back-riffled flushing grooves, this 1.2kg Retrac body prevents rock-powder secondary crushing and instantly ejects broken ground, ensuring the bit can be extracted smoothly from fractured, collapsing strata without jamming.

• Uniface & Dome Resilience: Combining the flat Uniface profile with 9 robust Dome (spherical) carbide inserts ensures zero-compromise structural integrity under maximum top hammer percussion in tough mining formations.

In large-bore underground drifting and complex tunneling contracts, advancing safely through highly fractured or unstable stone strata requires tooling that balances aggressive volume clearing with zero-jamming security. Bloom's R32-51mm-Q9 Retrac Threaded Button Bit is explicitly engineered to excel in these high-risk formations. Weighing a heavy-duty 1.2kg, this premium 51mm threaded bit utilizes a specialized Uniface flat-face profile armed with 9 high-strength Dome (spherical) tungsten carbide inserts (Q9), ensuring modern high-frequency percussive shockwaves are evenly distributed to eliminate early insert breakage and body wash.

As one of the most critical large diameters utilized across global mining and dimensional natural stone quarrying fleets, this model's defining tactical advantage is its back-riffled Retrac body design. The specialized outer grooves act as an integrated fluid-chute matrix, sweeping heavy rock cuttings backward immediately to prevent energy-wasting secondary grinding. Should the borehole cave or collapse during deep anchoring cycles, the angled retrac wings enable the drill string to back-ream and retract effortlessly, protecting your drifter from catastrophic tool sticking. It is machined to achieve flawless alignment with standard shank adapters and industry-proven MM or MF Hexagonal drifter rods.

Looking to eliminate stuck-iron downtime and accelerate cycle speeds in unpredictable fault zones? Contact Bloom's technical sales division today to configure batch test shipments and optimize your underground fleet cost-per-meter.