📦 DTH Drill Bits

Kaishan M3A DTH Drill Bit for Mining & Water Well Drilling

Name: Kaishan M3A DTH Drill Bit for Mining & Water Well Drilling
Brand: Kaishan
SKU: M3A
Availability: InStock

Model: M3A

The Kaishan M3A DTH drill bit is a high-performance down-the-hole button bit engineered for demanding mining, quarrying, and water well drilling operations. Designed with premium tungsten carbide buttons and a robust alloy steel body, the M3A delivers exceptional penetration rates and extended service life in medium to hard rock formations. Its optimized air passages ensure efficient cuttings removal, while the precision-machined splines guarantee a secure fit with standard DTH hammers. Whether you are drilling blast holes in open-pit mines or constructing water wells, the Kaishan M3A offers reliable performance, reduced downtime, and lower cost per meter drilled. Compatible with popular DTH hammer models, this drill bit is an ideal choice for contractors seeking productivity and durability in the field.

Best For

Open-Pit Mining Water Well Drilling Quarrying & Aggregate Construction & Foundation

Technical Specifications

Model	M3A
Type	DTH Button Bit
Size	3 inches (76 mm)
Application	Mining, Water Well, Quarrying
Material	Alloy Steel, Tungsten Carbide
Weight	4.5 kg
Packing	Wooden Case

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Selection Advantages Applications Comparison Components Principle Features Packaging Service FAQ

Product Details

## Overview The Kaishan M3A is a premium down-the-hole (DTH) drill bit designed for professionals in mining, quarrying, and water well drilling. As a core component of the drilling tools category, this button bit is manufactured to exacting standards, ensuring compatibility with a wide range of DTH hammers. The M3A model features a 3-inch (76 mm) diameter, making it suitable for blast hole drilling and exploration applications where precision and speed are critical. ## Technical Features Constructed from high-quality alloy steel, the M3A undergoes advanced heat treatment to achieve an optimal balance of hardness and toughness. The bit is equipped with hemispherical tungsten carbide buttons, which provide excellent wear resistance and efficient rock fracturing. The optimized face design and flushing holes ensure rapid removal of cuttings, preventing regrinding and boosting penetration rates. The splined shank is precision-machined for a perfect fit with standard DTH hammers, reducing energy loss and enhancing impact transfer. Additionally, the M3A is available with various button configurations to suit different rock formations, from soft to medium-hard. ## Applications The Kaishan M3A excels in a variety of drilling environments. In open-pit mining, it is used for blast hole drilling in limestone, granite, and other hard rocks. For water well construction, the bit delivers reliable performance in overburden and bedrock, helping contractors reach aquifers efficiently. It is also widely employed in quarrying for aggregate production and in construction projects requiring rock anchors or foundation drilling. The bit's robust design ensures consistent results even in abrasive and challenging ground conditions. ## Why Choose Kaishan M3A? Kaishan is a globally recognized brand in drilling equipment, and the M3A reflects decades of engineering expertise. By choosing this drill bit, operators benefit from lower drilling costs, reduced downtime, and improved safety. Its compatibility with common DTH hammers minimizes inventory complexity, while the availability of spare parts and support ensures long-term reliability. Whether you are a drilling contractor or a mining company, the Kaishan M3A is a smart investment for your drilling tool needs.

Technical Selection

Key parameters for matching this machine to your job. Send us your hole diameter, depth and rock condition and our engineers will confirm the right configuration.

Weight

4.5 kg

Model

M3A

Type

DTH Button Bit

Size

3 inches (76 mm)

Application

Mining, Water Well, Quarrying

Material

Alloy Steel, Tungsten Carbide

Packing

Wooden Case

Not sure this model fits? Tell us the hole diameter and depth — we will confirm the matching rig, compressor and hammer.

Check with an engineer

Key Advantages

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Premium tungsten carbide buttons for extended wear life

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High-strength alloy steel body with advanced heat treatment

✓

Optimized flushing holes for efficient cuttings removal

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Precision-machined splines for secure hammer fit

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Available in various button configurations for different rock types

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Compatible with standard DTH hammers

Applications

📍 Open-Pit Mining

Blast hole drilling in hard rock formations such as granite and limestone.

Solution: Kaishan M3A's durable carbide buttons and optimized face design ensure fast penetration and long service life, reducing drilling costs per meter.

📍 Water Well Drilling

Constructing water wells in overburden and bedrock.

Solution: The M3A's efficient flushing and robust construction enable reliable drilling through varying formations, helping contractors reach aquifers quickly.

📍 Quarrying & Aggregate

Drilling blast holes for aggregate production in quarries.

Solution: With its wear-resistant buttons and strong body, the M3A maintains high productivity even in abrasive rock, minimizing downtime.

📍 Construction & Foundation

Rock anchors, foundation drilling, and site preparation.

Solution: The M3A's precise spline fit and reliable performance ensure accurate hole placement and efficient drilling in confined urban sites.

Middle Pressure Series Models

Compare specifications across the series to find the right model.

Model	Model	Type	Size	Application	Material	Inquire
M3AThis model	M3A	DTH Button Bit	3 inches (76 mm)	Mining, Water Well, Quarrying	Alloy Steel, Tungsten Carbide	Get a Quote
M3K	M3K	DTH Drill Bit	3 inch (76 mm) diameter	Mining, quarrying, water well drilling, construction	Alloy steel body with tungsten carbide buttons	Get a Quote
M30C	M30C	Down-The-Hole (DTH) Hammer	3-4 inch (76-102 mm) hole diameter	Mining, water well drilling, quarrying, construction	Alloy steel, heat-treated	Get a Quote
M3A	M3A	DTH Hammer (3-inch class)	3 inches	Mining, quarrying, water well drilling, construction	High-strength alloy steel	Get a Quote
M3AK	M3AK	Down-the-Hole (DTH) Hammer	3 inch	Mining, quarrying, water well drilling, construction	Alloy steel	Get a Quote

Compare 2–3 models? Tick the boxes and send them together — we will quote each one for you.

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Not sure which model fits your project? Send us your working pressure and air demand — our engineers will recommend the right one.

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Main Components

Alloy steel body
Tungsten carbide buttons
Splined shank
Flushing holes
Face design
Retaining ring
Chuck
Wear sleeves

Working Principle

The Kaishan M3A DTH drill bit operates on the principle of down-the-hole percussion. High-pressure air is delivered through the drill string to the DTH hammer, which directly drives the bit's piston. The piston strikes the bit's shank, transferring impact energy to the tungsten carbide buttons on the bit face. These buttons fracture the rock through a combination of impact and rotation. Simultaneously, the exhaust air flows through the flushing holes in the bit, cooling the buttons and lifting rock cuttings to the surface. The bit is rotated slowly by the drill rig, allowing the buttons to index between impacts and create a smooth, round hole. This method ensures high penetration rates and straight hole deviation control, making the M3A ideal for demanding drilling applications.

Detailed Features

▸High wear resistance
▸Excellent impact toughness
▸Efficient hole cleaning
▸Precise spline fit
▸Long service life
▸Low cost per meter
▸Wide compatibility
▸Reliable performance

Packaging & Shipping

Each Kaishan M3A DTH drill bit is carefully packed in a wooden case or carton, with rust-proof protection and foam padding to prevent damage during transit. For bulk orders, bits are palletized and shrink-wrapped for container loading. Standard delivery time is 15-30 days after order confirmation, depending on quantity. We ship from major Chinese ports such as Shanghai, Ningbo, or Qingdao. Air freight and express options are also available for urgent orders.

After-Sales Service

Kaishan offers a comprehensive after-sales service for the M3A drill bit. All products come with a 6-month warranty against manufacturing defects. Our 24-hour technical support team is available to assist with product selection, troubleshooting, and optimization. We provide free training for operators on proper use and maintenance. A full range of spare parts, including buttons and retaining rings, is stocked for quick shipment. Our global network of distributors ensures local support and fast delivery.

Frequently Asked Questions

What is the diameter of the Kaishan M3A DTH drill bit?+

The Kaishan M3A has a diameter of 3 inches (76 mm). Custom sizes are available upon request.

Which DTH hammers are compatible with the M3A?+

The M3A is compatible with most standard 3-inch DTH hammers, such as those from Kaishan, Atlas Copco, and Sandvik. Please confirm the shank type before ordering.

What rock formations is the M3A suitable for?+

It is ideal for medium to hard rock formations, including granite, limestone, and basalt. Button configuration can be customized for specific conditions.

How long does the M3A drill bit last?+

Service life depends on rock abrasiveness and operating parameters. Under normal conditions, it can drill 200-500 meters. Proper maintenance extends life.

Can I get custom button configurations?+

Yes, we offer various button shapes (spherical, ballistic, parabolic) and layouts to match your specific drilling needs. Contact us for details.

What is the warranty period?+

We provide a 6-month warranty against manufacturing defects. Wear parts are not covered.