T45 89mm Flat Face Retrac Body Dome Button Drill Bit Tungsten Carbide Rock Drilling

T45 89mm Flat Face Retrac Body Dome Button Drill Bit

The T45 89mm flat face retrac body dome button drill bit is a threaded rock drilling bit designed for demanding drilling applications in mining, quarrying, tunnelling, construction and rock excavation. Featuring a T45 threaded connection, flat face design, retrac body and dome-shaped tungsten carbide buttons, this drill bit provides a balanced cutting structure for efficient rock penetration and reliable drilling performance.

Product Overview

The retrac body design supports improved bit retrieval and reduced risk of sticking in demanding drilling conditions. The flat face configuration provides a stable drilling structure, while the dome buttons offer a practical combination of penetration performance and wear resistance. Designed for use with compatible T45 drill rods, this 89mm bit is suited to production drilling, quarry drilling, tunnelling and other rotary-percussive rock drilling applications.

Main Applications

• Mining & Mineral Exploration: Production drilling in underground and surface mining operations.
• Quarrying & Aggregate Production: Blast-hole drilling in granite, limestone and marble quarries.
• Tunnelling & Underground Construction: Precision drilling for tunnel development and rock excavation.
• Construction Rock Drilling: Foundation and anchor hole drilling in construction projects.
• Bench & Production Drilling: General rotary-percussive drilling in medium to hard rock.

Key Features & Advantages

• Flat Face Design: Provides a stable bit structure and supports consistent contact with the rock formation during drilling.
• Retrac Body: Designed for drilling applications where improved bit retrieval and reduced risk of bit sticking are important.
• Dome Carbide Buttons: The 13mm and 12mm dome buttons provide a balanced combination of rock penetration, strength and wear resistance.
• T45 Threaded Connection: Compatible with matching T45 drill rods and drilling systems for efficient energy transfer.
• 89mm Drilling Diameter: Suitable for a wide range of mining, quarrying, tunnelling and construction rock drilling applications.

Product Specifications

FAQ

Q1: What is a T45 89mm retrac drill bit used for?
A: It is mainly used for rotary-percussive rock drilling in mining, quarrying, tunnelling, construction and rock excavation. The retrac body is particularly useful in drilling conditions where bit retrieval and reduced sticking are important considerations.

Q2: What is the button configuration of the T45 89mm drill bit?
A: It has a dome button configuration of 13mm x 8 + 12mm x 5, using tungsten carbide buttons. This arrangement provides a balanced cutting structure for rock penetration and wear resistance.

Q3: What is the difference between a flat face and a retrac body drill bit?
A: A flat face refers to the design of the bit's front cutting face, while a retrac body refers to the body geometry designed to facilitate bit retrieval and reduce the risk of sticking in certain drilling conditions. A T45 89mm bit can combine both features in one design.

Q4: Which drill rod is compatible with a T45 89mm drill bit?
A: It is designed to work with T45 threaded drill rods and compatible rock drilling equipment. Using a correctly matched T45 drill rod helps ensure proper thread engagement and efficient transfer of drilling energy.

Q5: Is the T45 89mm dome button bit suitable for hard rock?
A: Yes. It can be used for medium to hard rock formations, depending on the specific rock properties and drilling conditions. Actual performance depends on factors such as rock abrasiveness, drilling pressure, impact energy, rotation speed, feed force and flushing efficiency.