Thread Connection: Standard R32 Female Thread
Bit Diameter & Net Weight: 51mm | Gross Weight: 1.2kg
Skirt & Face Design: Retrac Body (Grooved) with Advanced Uniface Profile
Carbide Matrix: 9 Heavy-Duty Semi-Ballistic Tungsten Carbides (Q9)
Flushing Configuration: 3 High-Flow Front Water Holes for Fast Chip Clearance
Primary Application: Single Pass & Short Hole Drifting (Underground Tunneling)
DRILLING EFFICIENCY TIP:
The Uniface & 3-Hole Advantage: The specialized Uniface design combined with 3 front water holes eliminates rock-powder secondary crushing. Cuttings are flushed out instantly, ensuring the 9 semi-ballistic buttons always strike fresh rock for maximum penetration speed.
Short-Hole Special: Optimized specifically for high-frequency tunneling operations requiring single-pass advance with infrequent string uncoupling.
In underground short-hole drifting and tunneling where fast advance rates are critical, tool stalling from clogged flushing channels destroys your cycle times. Bloom's R32-51mm-Q9-RC Threaded Button Bit is purpose-built to deliver steady, high-speed penetration without compromise. Featuring an advanced Uniface end profile armed with 9 heavy-duty semi-ballistic tungsten carbide buttons, this 1.2kg high-alloy bit evenly distributes the immense impact of modern rock drills, drastically reducing button shearing in tough, uniform strata.
Engineered perfectly for single-pass applications and underground contracts that require infrequent string uncoupling, its defining feature is the 3-hole front flushing matrix. By forcing high-pressure water directly onto the cutting impact zones, rock chips are evacuated immediately, preventing energy loss from secondary grinding. Wrapped in a rugged, back-riffled retrac body, it ensures your drill string retracts smoothly through collapsed or fractured ground without jamming.
While this 51mm Q9 model is an underground favorite, Bloom manufactures a comprehensive threaded drilling range from 22mm up to 89mm to fit any tunneling fleet. Contact our engineering consultants today to streamline your project’s cost-per-meter.
Contact: Kevin Dai
Phone: 13605749661
E-mail: sales@bloommachinery.com
Whatsapp:+86 13605749661
Add: Hehua Bridge, Yunlong Town, Yinzhou Distric, Ningbo City, ZheJiang Province