📦 DTH Drill Bits
Kaishan L2 DTH Drill Bit for Mining & Water Well
Model: L2
The Kaishan L2 is a 76 mm (2.99") low-pressure DTH button bit. It uses tungsten carbide buttons set in a steel body with flushing holes, and is made for blast hole and water well drilling in softer, low-pressure formations. This bit is a single-spec item: 76 mm diameter, part number L2.5-P0876.
Best For
Technical Specifications
| Model | Kaishan L2 |
| Type | DTH Drill Bit |
| Size | 110 mm (standard); other sizes available |
| Application | Mining, quarrying, water well drilling, construction |
| Material | Alloy steel body with tungsten carbide buttons |
| Weight | Approx. 15 kg (for 110 mm size) |
| Packing | Wooden case or carton, palletized for export |
Product Details
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. 15 kg (for 110 mm size)
Model
Kaishan L2
Type
DTH Drill Bit
Size
110 mm (standard); other sizes available
Application
Mining, quarrying, water well drilling, construction
Material
Alloy steel body with tungsten carbide buttons
Packing
Wooden case or carton, palletized for export
Not sure this model fits? Tell us the hole diameter and depth — we will confirm the matching rig, compressor and hammer.
Check with an engineerKey Advantages
High-quality carbide buttons for superior wear resistance
Robust alloy steel body for extended service life
Optimized air flow design for efficient cuttings removal
Compatible with standard DTH hammers
Available in multiple diameters for various applications
Heat-treated for maximum impact toughness
Precision manufacturing ensures consistent performance
Reduces cost per meter drilled
Applications
📍 Mining Blast Hole Drilling
Used in open-pit mines for drilling blast holes in hard rock such as granite and basalt.
Solution: The L2's durable carbide buttons and optimized flushing holes ensure fast penetration and long life, reducing drilling costs.
📍 Water Well Drilling
Ideal for drilling water wells in hard rock formations where standard bits wear quickly.
Solution: With its robust construction and efficient energy transfer, the L2 maintains high penetration rates and hole accuracy.
📍 Quarrying and Aggregate Production
Employed in quarries for drilling blast holes in limestone, sandstone, and other abrasive rocks.
Solution: The L2's wear-resistant design minimizes downtime and ensures consistent performance, maximizing quarry productivity.
📍 Construction and Foundation Work
Suitable for foundation piling, anchoring, and site investigation drilling in urban construction.
Solution: The bit's reliable performance and compatibility with various hammers make it a versatile tool for contractors.
Low Pressure Series Models
Compare specifications across the series to find the right model.
| ☑ | Model | Model | Type | Size | Application | Material | Inquire |
|---|---|---|---|---|---|---|---|
| L2This model | Kaishan L2 | DTH Drill Bit | 110 mm (standard); other sizes available | Mining, quarrying, water well drilling, construction | Alloy steel body with tungsten carbide buttons | Get a Quote | |
| L3 | Kaishan L3 | DTH Button Bit | 76mm - 152mm (3" - 6") | Mining, Quarrying, Water Well, Construction | Alloy Steel Body with Tungsten Carbide Buttons | Get a Quote | |
| L2 | Kaishan L2 | Low-pressure DTH Hammer | 2-inch (compatible with 64-76 mm bits) | Water well drilling, mining, quarrying, construction | Alloy steel with heat treatment | Get a Quote |
Compare 2–3 models? Tick the boxes and send them together — we will quote each one for you.
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.
Main Components
- Carbide buttons
- Steel body
- Flushing holes
- Spline shank
- Retainer ring
- Bit head
- Gauge buttons
- Face buttons
Working Principle
The Kaishan L2 DTH drill bit operates on the principle of down-the-hole percussion. Compressed air is fed through the drill string to the DTH hammer, which houses a piston that strikes the bit's shank at high frequency. This impact energy is transferred through the bit body to the carbide buttons, which crush and fracture the rock. Simultaneously, the exhaust air flows through the bit's flushing holes to remove cuttings from the hole bottom, preventing regrinding. The bit rotates slowly, indexing the buttons to new positions for even wear. The combination of impact, rotation, and flushing enables efficient drilling in hard rock. The L2's design optimizes this process by ensuring maximum energy transfer and effective cuttings evacuation, resulting in high penetration rates and extended bit life.
Detailed Features
- ▸Premium carbide buttons for high wear resistance
- ▸Heat-treated alloy steel body for toughness
- ▸Optimized flushing holes for efficient cleaning
- ▸Compatible with standard DTH hammers
- ▸Available in various diameters
- ▸Precision manufacturing for consistent quality
- ▸Reduces cost per meter drilled
- ▸Long service life in abrasive rock
Packaging & Shipping
Each Kaishan L2 DTH drill bit is individually packed in a protective wooden case or carton, with anti-rust oil applied to prevent corrosion during transport. Bits are then palletized and shrink-wrapped for container loading. Standard export packaging ensures safe delivery to any major port worldwide. Lead time is typically 15-30 days after order confirmation, depending on quantity. We ship from Shanghai or Ningbo port, with flexible shipping terms (FOB, CIF, etc.) to meet customer requirements.
After-Sales Service
Kaishan offers a comprehensive after-sales service for the L2 DTH drill bit. All products come with a 6-month warranty against manufacturing defects. Our 24-hour technical support team is available to assist with troubleshooting and application advice. We provide training for operators on proper bit usage and maintenance to maximize performance. Genuine spare parts are stocked in regional warehouses for quick delivery. Our global network ensures timely service and support wherever you operate.
Frequently Asked Questions
What is the Kaishan L2 DTH drill bit used for?+
The Kaishan L2 is a down-the-hole drill bit used for mining, quarrying, water well drilling, and construction. It is designed for drilling blast holes, water wells, and foundation holes in hard rock formations.
What sizes are available for the L2 bit?+
The L2 is available in various diameters, typically ranging from 90mm to 200mm, to suit different DTH hammers and application requirements. Custom sizes can be ordered.
What material are the carbide buttons made of?+
The carbide buttons are made of high-quality tungsten carbide with a cobalt binder, selected for optimal hardness and wear resistance in abrasive rock conditions.
Is the L2 compatible with other brands of DTH hammers?+
Yes, the L2 is designed to be compatible with most standard DTH hammers available in the market. Please confirm the shank type and size before ordering.
How long does the L2 drill bit last?+
Bit life depends on rock conditions, drilling parameters, and operator skill. Under normal conditions, the L2 offers excellent service life, often drilling hundreds of meters before requiring resharpening or replacement.
What is the warranty and after-sales support?+
We offer a 6-month warranty against manufacturing defects. Our 24-hour support team provides technical assistance, and we stock genuine spare parts for quick delivery worldwide.
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Where This Machine Is Used
Is This Rig Right for My Project?
Answer seven questions about your hole, depth and rock — get a matched rig, compressor, hammer, bit and rod.
Need Technical Support?
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Recommended System
Rig + air compressor + drilling tools matched to your project. Get pre-matching advice from our engineers.
Recommended Equipment Configuration
Matched from real machine parameters — rig, compressor, hammer, bit and rod working as one system.
KAISHAN KL511
- Hole range
- 64–127
- Drilling depth
- 25 m
Why matched
Parameter-matched to the machine on this page.
KSCY-175/8
- Working pressure
- 8 bar
- Air flow
- 5 m³/min
Why matched
Covers the required 5 bar / 5 m³/min air demand (rated 8 bar / 5 m³/min).
L2
- Hole range
- 68–88
- Air flow
- 5–5 m³/min
- Working pressure
- 5+ bar
- Bit shank
- L2.5** / DIR80
Why matched
Hole range 68–88 mm covers your requirement 76–76 mm.
System requirement: 5 bar / 5 m³/min · 76–76 mm
