📦 DTH Drill Bits

Kaishan K4 DTH Drill Bit for Mining & Water Well

Name: Kaishan K4 DTH Drill Bit for Mining & Water Well
Brand: Kaishan
SKU: K4
Availability: InStock

Model: K4

Kaishan K4 DTH drill bits are high-performance down-the-hole bits designed for mining, quarrying, and water well drilling. As a leading product in the Drilling Tools category, the K4 model features a durable carbide button insert and a robust steel body, ensuring efficient rock fragmentation and long service life. Compatible with standard DTH hammers, these bits deliver reliable performance in hard and abrasive formations. The K4 is available in various diameters and connection types to suit different drilling rigs. With optimized air flow and chip evacuation, it maximizes penetration rates while minimizing energy consumption. Ideal for contractors and operators seeking cost-effective drilling solutions, the Kaishan K4 DTH bit combines quality manufacturing with competitive pricing. Backed by Kaishan's global service network, it is a trusted choice for demanding drilling projects worldwide.

Best For

Open-Pit Mining Water Well Drilling Quarrying Construction

Technical Specifications

Model	K4
Type	DTH Drill Bit
Size	Φ110 mm (standard); other sizes available
Application	Mining, water well drilling, quarrying, construction
Material	Alloy steel body with carbide button inserts
Weight	Approx. 8.5 kg (for Φ110 mm)
Packing	Wooden case or carton, palletized for bulk

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Selection Advantages Applications Comparison Components Principle Features Packaging Service FAQ

Product Details

## Overview Kaishan K4 DTH drill bits are engineered for high-efficiency rock drilling in mining, water well, and construction applications. As a core product in the Drilling Tools category, the K4 series represents a balance of durability, performance, and cost-effectiveness. These bits are designed to work with standard down-the-hole hammers, making them a versatile choice for various drilling rigs. ## Technical Features The K4 DTH bit features a high-quality carbide button insert, which provides excellent wear resistance and impact toughness. The bit body is made from premium alloy steel, heat-treated for optimal strength and fatigue resistance. The flute design ensures efficient chip evacuation, reducing the risk of clogging and improving drilling speed. The bit is available in a range of diameters and connection types (e.g., API, metric) to match different hammer models. The K4 also incorporates a robust shank design that minimizes breakage and extends service life. ## Applications These bits are suitable for a wide range of drilling conditions, from soft to hard rock formations. They are commonly used in open-pit mining, quarrying, water well drilling, and geothermal exploration. The K4's versatility makes it a preferred choice for contractors working in diverse geological settings. Whether drilling blast holes or water wells, the K4 delivers consistent performance and reliable results. ## Quality Assurance Kaishan maintains strict quality control throughout the manufacturing process. Each K4 bit undergoes rigorous inspection to ensure dimensional accuracy and material integrity. The bits are tested for hardness, toughness, and fatigue resistance to meet international standards. With Kaishan's commitment to quality, the K4 DTH bit offers a dependable solution for demanding drilling operations.

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

Approx. 8.5 kg (for Φ110 mm)

Model

Type

DTH Drill Bit

Size

Φ110 mm (standard); other sizes available

Application

Mining, water well drilling, quarrying, construction

Material

Alloy steel body with carbide button inserts

Packing

Wooden case or carton, palletized for bulk

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

✓

High-performance carbide button insert for extended wear life

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Robust alloy steel body with heat treatment for superior strength

✓

Optimized flute design for efficient chip evacuation

✓

Compatible with standard DTH hammers and drilling rigs

✓

Available in multiple diameters and connection types

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Cost-effective solution for mining and water well drilling

Applications

📍 Open-Pit Mining

Used for drilling blast holes in hard rock formations.

Solution: Kaishan K4 DTH bits provide fast penetration and long service life, reducing downtime and drilling costs.

📍 Water Well Drilling

Ideal for drilling water wells in various geological conditions.

Solution: The K4 bit's efficient chip evacuation and durable design ensure reliable performance and clean holes.

📍 Quarrying

Suitable for drilling in quarries for aggregate production.

Solution: With high wear resistance, the K4 bit maintains consistent drilling speed and reduces bit replacement frequency.

📍 Construction

Used for foundation drilling and site preparation.

Solution: The K4 bit's versatility and compatibility with standard hammers make it a practical choice for construction projects.

High Pressure Series Models

Compare specifications across the series to find the right model.

Model	Model	Type	Size	Application	Material	Inquire
K4This model	K4	DTH Drill Bit	Φ110 mm (standard); other sizes available	Mining, water well drilling, quarrying, construction	Alloy steel body with carbide button inserts	Get a Quote
K10	K10	DTH Drill Bit (Down-the-Hole Button Bit)	90–130 mm diameter (customizable)	Mining, quarrying, water well drilling, construction	Alloy steel body with tungsten carbide buttons	Get a Quote
K3	K3	DTH Drill Bit	76mm - 152mm	Mining, Quarrying, Water Well Drilling	Alloy Steel with Carbide Buttons	Get a Quote
K5	K5	DTH Button Bit	130 mm - 152 mm diameter	Mining, quarrying, water well drilling, foundation engineering	Alloy steel body with tungsten carbide buttons	Get a Quote
K6	K6	DTH Button Bit	76mm - 152mm (3" - 6")	Mining, Quarrying, Water Well Drilling, Construction	Alloy Steel Body with Tungsten Carbide Buttons	Get a Quote
K8	K8	DTH Drill Bit	4 inch (102 mm) diameter	Mining, quarrying, water well drilling	Alloy steel body with tungsten carbide buttons	Get a Quote
K10	K10	DTH Hammer	10 inch	Mining, Water Well, Quarry, Construction	Alloy Steel	Get a Quote
K3	K3	DTH Hammer	3 inch	Mining, quarrying, water well drilling, construction	Alloy steel	Get a Quote
K30C	K30C	Down-the-Hole (DTH) Hammer	3 inch (76.2 mm) nominal	Mining, quarrying, water well drilling, construction	High-quality alloy steel, heat-treated	Get a Quote
K4	K4	DTH Hammer	4 inch	Mining, water well, quarry, construction	Alloy steel, heat-treated	Get a Quote
K40	K40	DTH Hammer	4 inch	Mining, quarrying, water well drilling, construction	High-strength alloy steel	Get a Quote
K40C	K40C	Down-The-Hole (DTH) Hammer	4-inch class (105-130mm hole diameter)	Mining, water well, quarry, construction drilling	Alloy steel, heat-treated	Get a Quote
K46	K46	DTH Hammer	4 inch	Mining, Quarrying, Water Well Drilling, Construction	High-Strength Alloy Steel	Get a Quote
K5	K5	Down The Hole (DTH) Hammer	5 inch	Mining, quarrying, water well, construction	Alloy steel, heat-treated	Get a Quote
K50	K50	Down-the-Hole (DTH) Hammer	5-inch class	Mining, quarrying, water well drilling, construction	Alloy steel, heat-treated	Get a Quote
K6	K6	DTH Hammer	6 inch	Mining, Water Well, Quarrying	Alloy Steel	Get a Quote
K8	K8	DTH Hammer	8 inch	Water well drilling, mining, quarrying	Alloy steel	Get a Quote
K80	K80	Down-the-Hole (DTH) Hammer	8 inch (203 mm)	Mining, Quarrying, Water Well Drilling	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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Tip: select multiple models and click “Inquire All” — the selected models are added to the quote form automatically, so you get a faster quotation.

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

Carbide button inserts
Steel body
Shank
Flushing holes
Flutes
Retaining ring
O-ring seals
Wear pads

Working Principle

DTH (Down-The-Hole) drill bits operate by receiving impact energy from a down-the-hole hammer, which is powered by compressed air. The hammer's piston strikes the bit's shank, transmitting high-frequency impact waves to the carbide buttons on the bit face. These buttons penetrate the rock, creating fractures. Simultaneously, the bit rotates slowly, allowing the buttons to crush the rock in a new position. Compressed air flows through the bit's flushing holes, cooling the bit and lifting rock cuttings to the surface. The K4 DTH bit is designed to optimize this process, with a robust shank to withstand impact forces and a flute design that enhances air flow for efficient chip removal. This combination results in high penetration rates and extended bit life, making it ideal for demanding drilling applications.

Detailed Features

▸High wear resistance
▸Excellent impact toughness
▸Efficient chip evacuation
▸Long service life
▸Compatible with standard hammers
▸Available in various sizes
▸Heat-treated for strength
▸Cost-effective

Packaging & Shipping

Each Kaishan K4 DTH drill bit is packed in a wooden case or carton, with rust-proof paper and foam protection. Standard export packaging ensures safe transportation. For bulk orders, bits are palletized and shrink-wrapped. Shipping is typically via sea freight from major Chinese ports such as Shanghai or Ningbo. Delivery time is 15-30 days after order confirmation, depending on quantity. Air freight is available for urgent orders.

After-Sales Service

Kaishan offers a 12-month warranty on all DTH drill bits against manufacturing defects. Our global service network provides 24-hour technical support and spare parts supply. We offer on-site training for operators and maintenance personnel. Customized solutions are available for specific drilling conditions. With warehouses in key regions, we ensure fast delivery of replacement bits and accessories.

Frequently Asked Questions

What is the Kaishan K4 DTH drill bit used for?+

The K4 is designed for down-the-hole drilling in mining, water well, quarrying, and construction applications. It is suitable for drilling blast holes, water wells, and foundation holes in various rock formations.

What sizes are available for the K4 bit?+

The K4 is available in diameters ranging from 76mm to 152mm, with various connection types such as API 2 3/8" and metric threads. Custom sizes can be provided upon request.

What is the recommended air pressure for the K4 bit?+

The K4 bit is designed to work with DTH hammers operating at air pressures between 10-25 bar, depending on the hammer model and drilling conditions.

How long does the K4 bit last?+

Bit life depends on rock conditions and operating parameters. In typical hard rock drilling, the K4 bit can last 200-500 meters. Proper maintenance and correct air pressure can extend its life.

Is the K4 bit compatible with other brands of hammers?+

Yes, the K4 bit is designed to be compatible with most standard DTH hammers from major brands, as long as the shank and connection type match.

What is the warranty period for the K4 bit?+

Kaishan offers a 12-month warranty against manufacturing defects. Worn parts due to normal operation are not covered.