📦 Trépans DTH

Trépan bouton DTH L2.5

Name: Trépan bouton DTH L2.5
Brand: Kaishan
SKU: L2
Availability: InStock

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.

Technical Specifications

Modèle	L2
Diamètre (mm)	76
Trous de rinçage	2
Poids (kg)	2.5

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Selection Advantages Applications Comparison Components Principle Features Packaging Service FAQ

Product Details

## Overview The Kaishan L2 is a low-pressure DTH button bit for 76 mm (2.99") holes. It is the bit that goes on the end of the string; it does not generate the blow, the hammer above it does. ## Specification - Hole diameter: 76 mm (2.99") - Pressure class: low pressure - Part number: L2.5-P0876 - Cutting structure: tungsten carbide buttons - Body: steel with flushing holes ## Where it is used - Blast hole drilling - Water well drilling - Soft to medium formations where low-pressure air is available ## Matching Match the bit to the hammer shank you are running. If you tell us your hammer model we will confirm the bit that fits before you order.

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.

Modèle

Diamètre (mm)

Trous de rinçage

Poids (kg)

2.5

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 carbide buttons for superior wear resistance

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Robust alloy steel body for extended service life

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Optimized air flow design for efficient cuttings removal

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Compatible with standard DTH hammers

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Available in multiple diameters for various applications

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Heat-treated for maximum impact toughness

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Precision manufacturing ensures consistent performance

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Reduces cost per meter drilled

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.

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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 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.