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77mm T38 Thread Button Bit Wear Resistant For Heavy Rock Drilling

Brand Name:	HLDRILL
MOQ:	10PCS
Price:	Contact us
Payment Terms:	T/T
Supply Ability:	3000 per month

Detail Information

Product Description

Detail Information

Place of Origin:

CHINA

Certification:

ISO 9001 Certified

Name:

Thread Button Bit

Material:

Tungsten Carbide

Face:

Flat / Drop Center / New Drop Center

Threadtype:

R、T、S、SR、ST

Weight:

2.7 Kg

Wear Resistant:

High

Diameter:

77mm

Usageenvironment:

Mining, Construction, Quarrying

Compatibility:

Compatible With Most Drilling Rigs

Carbide Tungsten:

5×11mm , 8×11mm

Packaging Details:

Wooden Boxes, Cardboard Boxes

Highlight:

77mm Thread Button Bit

T38 Thread Button Bit

Thread Button Bit Rock Drilling

Product Description

77mm T38 Thread Button Bits for Heavy Rock Drilling with Durable Carbide Buttons Conditions

Product Name 77mm T38 Thread Button Bits for Heavy Rock Drilling Conditions

Thread T38

Diameter 77mm

Carbide Tungsten 5×11mm, 8×11mm

Skirt Design Normal

Weight 2.7 kg

Carbide Design Spherical Buttons

Face Design Concave Heart

When your project requires drilling through highly abrasive, hard rock formations, ordinary button bits simply won't cut it—leading to wasted time, increased operating costs, and potential unplanned downtime. Our Henglong 77mm T38 threaded button bit is designed specifically for heavy-duty rock drilling applications, combining robust construction, precision engineering, and powerful performance to tackle your toughest jobs.

T38 Thread: The Core of Heavy-Duty Connections

The T38 trapezoidal thread is the core advantage of this drill bit, designed for high-torque, high-impact drilling applications:

Secure, Non-Slip Connection: Unlike standard threads, the T38's symmetrical trapezoidal profile creates a tight, interlocking fit with the matching drill rod. This eliminates thread slippage, even under extreme rotational torque and repeated impacts, ensuring maximum energy transfer from the drill rig to the drill bit working face.
Compatibility with Heavy-Duty Equipment: Fully compatible with mainstream heavy-duty rock drilling rigs and surface drill rigs (such as Atlas Copco and Sandvik). Ideal for large-scale open-pit mining, deep tunnel excavation, and quarry blasting operations requiring stable deep-hole drilling.

77mm Drilling Diameter: Optimal Performance Balance

The 77mm diameter achieves a perfect balance between drilling speed and hole integrity in hard rock applications. The optimized body geometry of the drill bit minimizes "bit deviation" on uneven rock surfaces, reducing the need for rework and ensuring accurate implementation of the blasting pattern.

Durable Construction Features

High-quality carbide buttons
Reinforced drill body
High-flow flushing holes

Extended Service Life

The wear-resistant carbide teeth reduce the frequency of drill bit replacement, lowering the drilling cost per meter and improving operational efficiency.

For customized solutions, please contact our technical team.

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