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D Miningwell DTH Drill Bits: High-Durability Drilling Tools for Water Well & Mining Industries

This article focuses on D Miningwell’s Down-the-Hole (DTH) drill bits—specialized drilling tools engineered for water well drilling, hard rock formation penetration, and mining operations. It details the two core product series (low-pressure CIR series and high-pressure DHD series), their technical specifications, customizable features (tungsten carbide inserts, surface profiles, flush holes), and 30 years of proven export performance. The piece explains how these durable, compatible DTH bits meet the needs of global procurement teams sourcing equipment for water well rigs, mining machinery, and core drilling rigs, highlighting reliability and versatility as key advantages.

High-Quality Tungsten Carbide DTH Drill Bits from a Leading Chinese Supplier: D Miningwell Empowers Drilling Projects Across Industries

D Miningwell DTH Down-the-Hole Drilling Tools: High-Efficiency Well Drilling Bits for Mining & Drilling Operations

Content

In water well drilling and mining operations, the drill bit is the “frontline” component—its durability, precision, and compatibility directly impact project efficiency, costs, and success. Hard rock formations, variable geological conditions, and high drilling pressures demand tools that can withstand extreme wear while delivering consistent performance. D Miningwell’s DTH (Down-the-Hole) drill bits are designed to meet these challenges: crafted from high-grade carbide inserts and steel, they have served global clients for 30 years, earning trust in water well projects, mining sites, and core drilling operations. For procurement teams sourcing reliable drilling tools for water well rigs, mining machinery, or core drilling rigs, these DTH bits stand out as a long-lasting, cost-effective solution.

CIR series DTH bits(Low pressure)

Technical Parameters
Model：	Gauge buttons(mm)	Front buttons(mm)	Tail shank diameter(mm)	Port holes	Weight(KG)
CIR76-76	φ12*5	φ12*3	φ43	2	2.1
CIR90-90	φ14*6	φ132+φ122	φ53.5	2	3.7
CIR90-110	φ14*6	φ133+φ123	φ53.5	3	4.6
CIR90-130	φ14*7	φ133+φ124	φ53.5	3	6
CIR110-110	φ14*6	φ133+φ123	φ64	3	6
CIR110-130	φ14*7	φ133+φ124	φ64	3	7.4
CIR110-150	φ14*8	φ143+φ136	φ64	3	9.6
CIR110-170	φ15*9	φ146+φ1310	φ64	3	12.3
CIR110-200	φ15*9	φ146+φ1312	φ64	3	16.5
CIR150-150	φ16*9	φ146+φ144	φ89.5	3	14.8
CIR150-175	φ16*9	φ146+φ145	φ89.5	3	19
CIR170-175	φ16*9	φ146+φ145	φ102	3	21
CIR170-185	φ16*9	φ146+φ146	φ102	3	21.8

DHD series DTH bits(High pressure)

Technical Parameters
Model：	Head diameter：	Shank length：	Spline：	Port holes：	Gauge buttons：	Front buttons：	Weight：
DHD25A-76	76	174	6	2	φ14mm*6	φ11mm*4	3.2kg
DHD35A-90	90	180	8	2	φ14mm*6	φ12mm*5	4.7kg
DHD35A-100	100	180	8	2	φ14mm*6	φ12mm*5	4.8kg
DHD340-108	108	209	8	2	φ16mm*7	φ14mm*6	7.85kg
DHD340-130	130	209	8	2	φ16mm*8	φ14mm4+φ13mm3	8.88kg
DHD350-140	140	260	8	2	φ18mm*7	φ15mm4+φ14mm3	15.8kg
DHD350-152	152	260	8	2	φ18mm*8	φ14mm*8	17kg
DHD350-178	178	260	8	2	φ18mm*8	φ16mm6+φ14mm5	20.4kg
DHD360-154	154	308.5	8	2	φ18mm*8	φ16mm4+φ15mm4	22.5kg
DHD360-178	178	308.5	8	2	φ18mm*8	φ16mm6+φ15mm5	26.1kg
DHD360-203	203	308.5	8	2	φ18mm*10	φ16mm8+φ15mm6	30.4kg
DHD380-203	203	350	10	2	φ18mm*10	φ18mm4+φ16mm10	48.5kg
DHD380-254	254	350	10	2	φ18mm*12	φ18mm12+φ16mm8	62.4kg

Why D Miningwell DTH Drill Bits Excel in Water Well & Mining Applications

Water well drilling and mining require drill bits that balance two critical traits: resistance to hard rock abrasion and adaptability to diverse formation types. D Miningwell achieves this through premium materials, precision engineering, and two specialized product series—each tailored to specific pressure and diameter needs. Let’s break down their key strengths:

1. Premium Materials: Carbide Inserts & High-Strength Steel for Longevity

Every D Miningwell DTH drill bit is built to resist the extreme forces of hard rock drilling:

Tungsten Carbide Inserts: The cutting surface features tungsten carbide inserts—one of the hardest industrial materials—chosen for its ability to withstand high impact and abrasion. This ensures the bit maintains sharpness even when drilling through granite, basalt, or other dense formations, reducing the need for frequent replacements.
High-Quality Steel Body: The bit’s core is made from durable steel, engineered to handle high torque and pressure without bending or cracking. This structural integrity is critical for deep water well drilling, where bits are subjected to continuous stress over hours of operation.

2. Two Core Series: Low-Pressure CIR & High-Pressure DHD for Every Need

D Miningwell offers two product lines to match the varying pressure requirements of water well and mining equipment, ensuring compatibility with most DTH hammers (when paired by bore diameter and spline configuration):

Low-Pressure CIR Series: Ideal for Moderate Conditions

The CIR series is designed for low-pressure DTH hammers, making it a top choice for water well drilling in less dense rock formations or shallow mining projects. Key technical highlights from the series include:

Diameter Range: From 76mm (CIR76-76) to 185mm (CIR170-185), covering small to medium-sized well and mining holes.
Tail Shank Sizes: Ranges from 43mm (CIR76-76) to 102mm (CIR170-185), ensuring a secure fit with standard low-pressure hammers.
Weight & Port Holes: Weights start at 2.1kg (CIR76-76) for easy handling and go up to 21.8kg (CIR170-185) for heavier-duty use; port holes (2-3 per bit) optimize airflow and debris removal, preventing clogging.

For example, the CIR110-150 (150mm diameter) is a popular choice for medium-depth water well drilling: its φ148 gauge buttons and φ143+φ13*6 front buttons balance cutting power and debris clearance, while the 64mm tail shank fits most common low-pressure hammers.

High-Pressure DHD Series: Built for Tough Formations

The DHD series is engineered for high-pressure DTH hammers, designed to tackle deep water well drilling, hard rock mining, and core drilling in dense formations. Standout technical features include:

Diameter Range: From 76mm (DHD25A-76) to 254mm (DHD380-254), supporting large-scale mining holes and deep water wells.
Shank Length & Spline: Shank lengths range from 174mm (DHD25A-76) to 350mm (DHD380-203/254), with spline counts of 6, 8, or 10—ensuring a tight, vibration-resistant connection to high-pressure hammers.
Heavy-Duty Buttons: Gauge buttons up to φ18mm*12 (DHD380-254) and front buttons combining φ18mm, φ16mm, and φ15mm sizes deliver maximum cutting force for hard rock.

The DHD350-178 (178mm diameter) is a favorite for mining and deep water wells: its 260mm shank length, 8-spline design, and φ18mm*8 gauge buttons handle high-pressure operation, while the 20.4kg weight provides stability during long drilling shifts.

3. Customization: Tailored to Your Project’s Exact Needs

No two drilling projects are the same—D Miningwell offers customization options to ensure its DTH bits align with your equipment and geological conditions:

Tungsten Carbide Insert Shapes: Choose from spherical (for general use), ballistic (for hard rock penetration), or other shapes to match formation hardness.
Surface Profiles: Opt for flat (even cutting), concave (deeper penetration), or convex (stable drilling) profiles based on hole depth and rock type.
Flush Holes: Adjust the number or size of flush holes to optimize debris removal—critical for preventing bit overheating and extending life.

Whether you need a specialized bit for a narrow water well in a remote area or a large-diameter bit for open-pit mining, D Miningwell’s customization service eliminates the “one-size-fits-all” problem.

4. 30 Years of Global Trust: Proven Performance Across Markets

For procurement teams, reliability is non-negotiable—and D Miningwell’s track record speaks for itself:

30+ Years of Export Experience: The brand has shipped DTH bits to countries across Africa, Asia, Europe, and the Americas, with consistent positive feedback on durability and performance.
Full Equipment Compatibility: These bits work seamlessly with D Miningwell’s own water well rigs, mining machinery, and core drilling rigs, as well as third-party equipment—reducing the need for adapter parts.
Comprehensive Support: D Miningwell provides technical guidance to help you select the right bit (e.g., CIR vs. DHD, diameter, customization options) and offers access to replacement parts for long-term maintenance.

Why Global Procurers Choose D Miningwell DTH Drill Bits

For teams sourcing drilling tools for water well rigs, mining machinery, or core drilling rigs, D Miningwell’s DTH bits offer unmatched value:

Durability: Carbide inserts and steel bodies reduce replacement frequency, lowering long-term costs.
Compatibility: Two series and customizable features ensure a perfect fit with most DTH hammers and rigs.
Proven Results: 30 years of exports and positive client feedback confirm reliability in real-world conditions.
Full Product Line: D Miningwell supplies all drilling equipment (rigs, compressors) and tools, making it a one-stop shop for procurement teams.

Whether you’re drilling a water well in rural Australia, mining in South America, or conducting core sampling in Europe, D Miningwell’s DTH drill bits deliver the performance and durability your project needs to stay on track.

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