📦 DTH Drill Bits

Kaishan K8 DTH Drill Bits for Mining & Water Well

Name: Kaishan K8 DTH Drill Bits for Mining & Water Well
Brand: Kaishan
SKU: K8
Availability: InStock

Model: K8

Kaishan K8 DTH drill bits are high-performance down-the-hole bits designed for mining, quarrying, and water well drilling. Engineered with premium carbide buttons and robust steel bodies, the K8 series delivers exceptional penetration rates and long service life in medium to hard rock formations. Available in various diameters and shank types, these bits are compatible with major DTH hammers. The optimized button layout and flushing holes ensure efficient cuttings removal and reduced wear. Whether you are drilling blast holes, water wells, or foundation holes, the Kaishan K8 DTH bits provide reliable performance and cost-effective operation. Trusted by contractors worldwide, Kaishan combines advanced manufacturing technology with strict quality control to produce durable drilling tools. Choose Kaishan K8 for faster drilling, lower downtime, and superior results in demanding conditions.

Best For

Open-Pit Mining Water Well Drilling Quarrying Foundation Engineering

Technical Specifications

Model	K8
Type	DTH Drill Bit
Size	4 inch (102 mm) diameter
Application	Mining, quarrying, water well drilling
Material	Alloy steel body with tungsten carbide buttons
Weight	8 kg (approx.)
Packing	Wooden case or carton

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Selection Advantages Applications Comparison Components Principle Features Packaging Service FAQ

Product Details

## Overview Kaishan K8 DTH drill bits are precision-engineered tools for down-the-hole hammer drilling in mining, quarrying, water well, and construction applications. As a leading manufacturer of drilling equipment, Kaishan designs the K8 series to deliver high penetration rates and extended service life even in abrasive and hard rock formations. These bits are available in a range of diameters and shank configurations to match popular DTH hammers. ## Technical Features The K8 bits feature a high-strength alloy steel body heat-treated for optimal hardness and toughness. Tungsten carbide buttons are strategically arranged to maximize rock breakage and minimize wear. Multiple flushing holes ensure efficient removal of cuttings, preventing regrinding and reducing bit wear. The bits are compatible with standard DTH hammers and are available with flat, convex, or concave face designs to suit different rock conditions. Strict dimensional tolerances guarantee a perfect fit and reliable performance. ## Applications Kaishan K8 DTH bits are widely used in open-pit mining, quarrying, water well drilling, geothermal drilling, and foundation engineering. They excel in medium to hard rock such as granite, basalt, limestone, and sandstone. Whether drilling blast holes, water wells, or anchor holes, these bits provide consistent performance and long life, reducing overall drilling costs. ## Quality Assurance Each Kaishan K8 bit undergoes rigorous inspection, including material testing, heat treatment verification, and dimensional checks. With advanced CNC machining and automated brazing, Kaishan ensures consistent quality and reliable performance. The K8 series is a cost-effective choice for contractors seeking durable and efficient drilling tools.

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

8 kg (approx.)

Model

Type

DTH Drill Bit

Size

4 inch (102 mm) diameter

Application

Mining, quarrying, water well drilling

Material

Alloy steel body with tungsten carbide buttons

Packing

Wooden case or carton

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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High-strength alloy steel body for durability

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Premium tungsten carbide buttons for long life

✓

Optimized button layout for fast penetration

✓

Multiple flushing holes for efficient cuttings removal

✓

Compatible with major DTH hammers

✓

Available in various diameters and face designs

✓

Heat-treated for optimal hardness and toughness

✓

Strict quality control for consistent performance

Applications

📍 Open-Pit Mining

Drilling blast holes in hard rock such as granite and basalt.

Solution: Kaishan K8 DTH bits with convex face and hemispherical buttons deliver high penetration rates and long life in abrasive mining conditions.

📍 Water Well Drilling

Drilling water wells in medium to hard formations.

Solution: K8 bits with flat face and carbide buttons ensure efficient cuttings removal and reliable performance for water well projects.

📍 Quarrying

Drilling blast holes in limestone and sandstone quarries.

Solution: K8 bits with optimized flushing holes reduce regrinding and provide consistent drilling in quarry operations.

📍 Foundation Engineering

Drilling anchor holes and foundation holes in construction.

Solution: K8 bits with concave face design offer stability and precision for foundation drilling in mixed ground conditions.

High Pressure Series Models

Compare specifications across the series to find the right model.

Model	Model	Type	Size	Application	Material	Inquire
K8This model	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 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
K4	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
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
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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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

Bit body
Tungsten carbide buttons
Flushing holes
Splines
Shank
Retaining ring
Chuck
Wear sleeve

Working Principle

DTH (Down-The-Hole) drill bits are used with a DTH hammer, which is a pneumatic percussion tool. Compressed air is supplied through the drill string to the hammer, driving the piston to strike the bit. The bit's tungsten carbide buttons crush and fracture the rock under high-frequency impacts. Simultaneously, the air flows through the flushing holes in the bit to remove cuttings from the hole bottom. The bit rotates slowly, indexing the buttons to new positions for efficient rock breakage. The combination of impact and rotation allows fast drilling in hard rock. Kaishan K8 bits are designed to withstand high impact forces and abrasive wear, ensuring reliable performance and long service life.

Detailed Features

▸High-strength alloy steel body
▸Premium tungsten carbide buttons
▸Optimized button layout
▸Multiple flushing holes
▸Heat-treated for hardness and toughness
▸Compatible with major DTH hammers
▸Available in various diameters
▸Strict quality control

Packaging & Shipping

Kaishan K8 DTH drill bits are packed in wooden cases or cartons with rust-proof protection. Each bit is secured to prevent damage during transport. Standard export packaging is suitable for sea and air freight. For bulk orders, bits can be palletized or loaded into containers. Delivery time is typically 15-30 days after order confirmation, depending on quantity. Shipping ports include Shanghai, Ningbo, or as per customer request. We ensure timely delivery and safe arrival of all products.

After-Sales Service

Kaishan provides comprehensive after-sales service for K8 DTH drill bits. All products come with a 6-month warranty against manufacturing defects. Our technical team is available 24/7 to assist with product selection, troubleshooting, and optimization. We offer training for drilling operations and maintenance. Genuine spare parts are available for quick delivery. With a global network of distributors and service centers, we ensure prompt support wherever you operate. Customer satisfaction is our priority.