DTH Bits - NUMA

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DTH Bits - NUMA Specification

Machine Type
Drilling Tool

Dimension (L*W*H)
Dependent on Bit Size

Features
High penetration rate, High wear resistance, Long service life, Suitable for hard or abrasive formations

Condition
New

Cutting Area
Designed for DTH Drilling Rigs

Diameter
110mm, 130mm, 152mm, 165mm or as required

Product Type
DTH Bits (NUMA)

Material
High Grade Alloy Steel

Computerized
No

Automatic Grade
Manual

CNC Or Not
No

Control System
Pneumatic Hydraulic

Power Source
Pneumatic

Weight (kg)
Variable (Based on Size)

Capacity
Industrial Borehole Drilling

Color
Metallic / Customized

Usage & Applications
Used for deep hole drilling in mining, water well, oil, and gas exploration

About DTH Bits - NUMA

NUMA
CONCAVE
DIAMETER		FLUSH HOLES	BUTTONS DIA X QTY		WEIGHT		PRODUCT NO
MM	INCH	FLUSH HOLES	OUTER	FRONT	KG	LBS	PRODUCT NO
254	10	2	19X12	16X24	100.0	220.4	36-N1LII254S
270	10 5/8	3	19X12	16X25	105.0	231.4	36-N1QII270S
280	11	3	19X12	16X27	108.0	238.0	36-N1QJI280S
292	11 1/2	3	19X21	16X23	108.0	238.0	36-N1UII292S
305	12	3	19X18	19X15 16X13	110.0	242.4	36-N1UJI305S
330	13	3	19X18	19X18 16X13	115.0	253.4	36-N1UJI330S

Specialized Design for Deep Drilling

DTH Bits - NUMA feature versatile bit face designsconcave, flat, and convexto address various geologic challenges. Designed specifically for deep hole drilling, these bits maintain structural integrity and efficient cutting performance even at depths exceeding 300 meters, making them an ideal solution for large-scale industrial applications.

Built for Performance and Durability

Crafted from high grade alloy steel, our DTH bits offer superior wear resistance and exceptional lifespan. Routine use in abrasive or hard formations is supported by their robust construction, ensuring high penetration rates and consistent performance across prolonged drilling operations.

Compatibility and Customization

NUMA DTH bits seamlessly fit standard NUMA hammers and can be supplied with threaded connections to suit standard API or bespoke requirements. With variable sizes, customizable color options, and adaptiveness for various drilling rigs, they guarantee optimal integration into your existing drilling setup.

FAQs of DTH Bits - NUMA:

Q: How do the different bit face designs (concave, flat, convex) affect drilling performance?

A: Concave, flat, and convex bit faces are chosen based on rock formations and drilling requirements. Concave designs are ideal for fast penetration in medium to hard rock, flat faces work well in broken or abrasive conditions, and convex faces deliver stable drilling in soft to medium-hard ground.

Q: What is the process for installing NUMA DTH Bits on drilling rigs?

A: Installation involves securely attaching the bit to the NUMA DTH hammer, ensuring the correct API or customized thread connection. Proper alignment and tightening are essential for safe operation and optimal drilling performance.

Q: When should I replace my NUMA DTH bit?

A: Replacement is advisable when the bits penetration rate slows significantly, or inspection reveals notable wear or damage to the carbide buttons or steel body. With proper use, these bits can last several thousand meters, depending on drilling conditions.

Q: Where can NUMA DTH Bits be effectively used?

A: These bits are optimal for industrial borehole drilling in industries like mining, water well, oil, and gas exploration, particularly where deep drilling in hard or abrasive terrains is required.

Q: What are the main benefits of using NUMA DTH Bits?

A: Benefit from high penetration rates, robust wear resistance, extended bit life, and suitability for demanding geological conditions, resulting in greater efficiency and reduced downtime during deep drilling operations.

Q: How does the choice of diameter affect drilling operations?

A: Selecting the right bit diameter (110mm, 130mm, 152mm, 165mm, or custom) ensures compatibility with project objectives, influencing hole size, penetration rate, and the overall efficiency of the drilling operation.

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