📦 DTH Drill Bits

L2.5 DTH Drill Bit

Name: L2.5 DTH Drill Bit
Brand: Kaishan
SKU: L2.5
Availability: InStock

Model: L2.5

L2.5 DTH drill bit.

Best For

Mining Blast Hole Drilling Water Well Drilling Quarrying and Aggregate Production Construction and Foundation Work

Technical Specifications

Model	L2.5
Type	DTH Drill Bit
Size	2.5 inches (63.5 mm) diameter (typical)
Application	Mining, quarrying, water well drilling, construction
Material	Alloy steel body with tungsten carbide buttons
Weight	Approx. 2.5 kg (depending on configuration)
Packing	Wooden case or carton

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Selection Advantages Applications Comparison Components Principle Features Packaging Service FAQ

Product Details

## Overview The Kaishan L2.5 is a premium down-the-hole (DTH) drill bit engineered for high-efficiency rock drilling in mining, quarrying, water well, and construction applications. As a core product in the Drilling Tools category, this bit is designed to withstand the toughest conditions while delivering consistent penetration rates. The L2.5 model reflects Kaishan's decades of expertise in rock drilling technology, combining advanced materials with precision manufacturing. ## Technical Features The L2.5 features a robust body machined from high-quality alloy steel, heat-treated for maximum strength and fatigue resistance. Tungsten carbide buttons are strategically arranged to optimize rock breakage and wear distribution. The bit's face design includes multiple air passages that ensure effective flushing and cooling, reducing the risk of bit balling. Its spline or threaded shank (depending on hammer type) ensures a secure fit and efficient energy transfer. The L2.5 is compatible with a range of DTH hammers, making it a versatile tool for various drilling rigs. ## Applications This DTH bit excels in medium to hard rock formations such as granite, limestone, sandstone, and basalt. It is widely used in open-pit mining for blast hole drilling, water well construction, geothermal drilling, and foundation engineering. The L2.5's balanced design minimizes deviation and delivers straight holes, which is critical for accurate blasting and well installation. Its durable construction ensures long service life even in abrasive ground conditions. ## Performance Benefits Operators choose the Kaishan L2.5 for its reliable performance and low cost per meter. The optimized button layout and flushing system reduce energy consumption and increase penetration rates. The bit's robust shank design minimizes breakage and extends tool life. With Kaishan's global support, customers receive timely technical assistance and genuine spare parts, ensuring maximum uptime and productivity.

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. 2.5 kg (depending on configuration)

Model

L2.5

Type

DTH Drill Bit

Size

2.5 inches (63.5 mm) diameter (typical)

Application

Mining, quarrying, water well drilling, construction

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-quality alloy steel body for superior strength and durability

✓

Tungsten carbide buttons for excellent wear resistance

✓

Optimized face design for efficient rock breakage

✓

Multiple air passages for effective flushing and cooling

✓

Compatible with standard DTH hammers

✓

Reduces drilling cost per meter

✓

Long service life in abrasive conditions

✓

Backed by Kaishan global service network

Applications

📍 Mining Blast Hole Drilling

Used in open-pit mines for drilling blast holes in hard rock.

Solution: The L2.5's durable carbide buttons and efficient flushing ensure fast penetration and straight holes, improving blasting efficiency.

📍 Water Well Drilling

Ideal for drilling water wells in medium to hard formations.

Solution: Its robust design and reliable performance reduce downtime and ensure consistent hole quality for well installation.

📍 Quarrying and Aggregate Production

Employed in quarries for drilling holes for aggregate extraction.

Solution: The bit's wear-resistant materials and optimized cutting structure deliver long life and low cost per ton.

📍 Construction and Foundation Work

Used for drilling foundation holes and anchoring in construction projects.

Solution: The L2.5 provides accurate hole alignment and efficient drilling, ensuring project timelines are met.

Similar Models in This Category

This model is unique in its series — here are similar models from the same category.

Model	Model	Type	Size	Application	Material	Inquire
L2.5This model	L2.5	DTH Drill Bit	2.5 inches (63.5 mm) diameter (typical)	Mining, quarrying, water well drilling, construction	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
K30	K30	DTH Button Bit	76mm - 152mm (customizable)	Mining, Quarrying, Water Well, Construction	Alloy Steel Body with Tungsten 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
K40	K40	DTH Button Bit	76mm - 152mm (3" - 6")	Mining, quarrying, water well drilling, construction	Alloy steel body with tungsten 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
K50	K50	DTH Drill Bit (Button Bit)	5 inch (127 mm) shank, 130-140 mm diameter	Mining, quarrying, water well drilling, construction	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

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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 (alloy steel)
Tungsten carbide buttons
Flushing holes
Shank (spline or threaded)
Face design (concave, flat, or convex)
Retaining ring
Air passages
Wear pads

Working Principle

The Kaishan L2.5 DTH drill bit operates on the principle of down-the-hole percussion. High-pressure air is supplied through the drill string to the DTH hammer, which drives the piston to strike the bit's shank. The impact energy is transferred to the tungsten carbide buttons, which crush and fracture the rock. Simultaneously, the bit rotates slowly, indexing the buttons to new positions for the next impact. Air is also directed through flushing holes in the bit face to remove cuttings from the hole bottom and cool the bit. This combination of impact and rotation enables efficient drilling in hard rock. The L2.5's design ensures optimal energy transfer, effective cuttings removal, and uniform wear, resulting in high penetration rates and long bit life.

Detailed Features

▸High-strength alloy steel body
▸Premium tungsten carbide buttons
▸Optimized button layout for efficient rock breakage
▸Multiple flushing holes for effective cleaning
▸Compatible with major DTH hammer brands
▸Heat-treated for extended life
▸Precision manufacturing for reliable fit
▸Available in various sizes and face designs

Packaging & Shipping

Each Kaishan L2.5 DTH drill bit is carefully packed in a wooden case or carton, with rust-proof protection and shock-absorbing material. Standard export packaging ensures safe delivery. For bulk orders, bits are palletized and shrink-wrapped. Shipping is typically arranged within 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 delivery are also available for urgent orders. Container loading is optimized to reduce freight costs.

After-Sales Service

Kaishan provides comprehensive after-sales support for the L2.5 DTH drill bit. All products come with a 6-month warranty against manufacturing defects. Our global service network offers 24-hour technical assistance and troubleshooting. We provide operation and maintenance training for customers and distributors. Genuine spare parts are available from regional warehouses to minimize downtime. Our engineers can assist with bit selection and optimization for specific drilling conditions. Customer satisfaction is our priority, and we continuously improve our products and services based on feedback.

Frequently Asked Questions

What size hole does the L2.5 DTH drill bit drill?+

The L2.5 is a 2.5 inch (63.5 mm) diameter DTH drill bit. It is used for drilling in mining, quarrying, water well and construction work.

What is the L2.5 DTH drill bit made of?+

The L2.5 has an alloy steel body with tungsten carbide buttons. The alloy steel body is heat-treated, and the tungsten carbide buttons are arranged in an optimized button layout for rock breakage.

What equipment does the L2.5 DTH drill bit work with?+

The L2.5 is compatible with standard DTH hammers and major DTH hammer brands. Its multiple flushing holes pass air for effective cleaning and cooling during drilling.

What applications suit the L2.5 DTH drill bit?+

The L2.5 is used for mining blast hole drilling, water well drilling, quarrying and aggregate production, and construction and foundation work. It is designed for medium to hard rock formations.

How much does the L2.5 DTH drill bit weigh?+

The L2.5 weighs approximately 2.5 kg, depending on configuration. The bit is available in various sizes and face designs.

How is the L2.5 DTH drill bit packed for shipping?+

Each L2.5 DTH drill bit is packed in a wooden case or carton with rust-proof protection and shock-absorbing material. For bulk orders, bits are palletized and shrink-wrapped, and shipping is typically arranged within 15-30 days after order confirmation.

What warranty covers the L2.5 DTH drill bit?+

The L2.5 DTH drill bit comes with a 6-month warranty against manufacturing defects. Kaishan's global service network offers 24-hour technical assistance, and genuine spare parts are available from regional warehouses.