
๐ฆ DTH Drill Bits
Kaishan R32 DTH Drill Bit for Mining & Water Well
Model: R32
The Kaishan R32 DTH drill bit is a high-performance down-the-hole button bit designed for demanding mining, quarrying, and water well drilling. Manufactured from premium alloy steel with tungsten carbide buttons, this R32 shank bit delivers exceptional wear resistance and impact energy transfer. Its optimized face design and flushing holes ensure efficient cuttings removal and stable penetration in hard rock formations. Compatible with standard R32 shank DTH hammers, it is ideal for bench drilling, blast hole drilling, and geothermal projects. Available in various diameters, the Kaishan R32 bit offers reliable performance, long service life, and low cost per meter. Backed by Kaishan's global service network, it is the smart choice for contractors seeking productivity and durability.
Technical Specifications
| Model | R32 |
| Type | DTH Button Bit |
| Size | 64 mm - 102 mm (2.5" - 4") |
| Application | Mining, Quarrying, Water Well Drilling |
| Material | Alloy Steel Body with Tungsten Carbide Buttons |
| Weight | 2.5 kg - 6.8 kg (depending on diameter) |
| Packing | Wooden Case or Carton |
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
2.5 kg - 6.8 kg (depending on diameter)
Model
R32
Type
DTH Button Bit
Size
64 mm - 102 mm (2.5" - 4")
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 โ we will confirm the matching rig, compressor and hammer.
Check with an engineerKey Advantages
Premium alloy steel body with advanced heat treatment for durability
High-grade tungsten carbide buttons for superior wear resistance
Optimized face design for efficient energy transfer and fast penetration
Multiple flushing holes for effective cuttings removal and bit cooling
Standard R32 shank for compatibility with major DTH hammers
Available in multiple diameters to suit various drilling conditions
Long service life reduces downtime and cost per meter
Applications
๐ Open-Pit Mining
Used for blast hole drilling in hard rock mining operations.
Solution: Kaishan R32 bit with wear-resistant carbide buttons ensures fast penetration and long life, reducing drilling costs.
๐ Quarrying
Ideal for drilling blast holes in granite, limestone, and other quarries.
Solution: Optimized flushing holes prevent regrinding, maintaining high drilling efficiency in abrasive rock.
๐ Water Well Drilling
Suitable for drilling water wells in hard formations.
Solution: R32 shank compatibility with DTH hammers provides reliable performance and easy bit changes.
๐ Construction & Foundation
Used for foundation piling and site preparation in construction.
Solution: Durable design handles mixed ground conditions, ensuring stable drilling and reduced downtime.
Threaded Series Models
Compare specifications across the series to find the right model.
| โ | Model | Model | Type | Size | Application | Material | Inquire |
|---|---|---|---|---|---|---|---|
| R32This model | R32 | DTH Button Bit | 64 mm - 102 mm (2.5" - 4") | Mining, Quarrying, Water Well Drilling | Alloy Steel Body with Tungsten Carbide Buttons | Get a Quote | |
| R25 | R25 | DTH Button Bit | 25 mm spline drive shank | Mining, quarrying, water well drilling, construction | Alloy steel body with tungsten carbide buttons | Get a Quote | |
| THREAD-OPENER-BITS | THREAD-OPENER-BITS | DTH Drill Bit / Thread Opener Bit | 76mm - 305mm (customizable) | Mining, Water Well Drilling, Quarrying, Construction | Tungsten Carbide Buttons + Alloy Steel Body | Get a Quote |
Compare 2โ3 models? Tick the boxes and send them together โ we will quote each one for you.
Tip: select multiple models and click โInquire Allโ โ 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 โ our engineers will recommend the right one.
Main Components
- Bit body (alloy steel)
- Tungsten carbide buttons
- R32 threaded shank
- Flushing holes
- Face grooves
- Retaining ring
- Brazing alloy
- Wear-resistant coating
Working Principle
The Kaishan R32 DTH drill bit operates on the principle of down-the-hole percussion. Compressed air is delivered through the drill string to the DTH hammer, which directly drives the bit's piston. The piston strikes the bit shank, transferring impact energy to the tungsten carbide buttons on the bit face. These buttons crush and fracture the rock under high-frequency impacts. Simultaneously, the bit rotates slowly, allowing the buttons to index to new positions. The exhaust air from the hammer travels through the flushing holes in the bit, cooling the bit and lifting rock cuttings to the surface. This combination of impact, rotation, and flushing enables efficient drilling in hard rock. The R32 thread ensures a secure connection between the bit and hammer, withstanding the rigorous demands of continuous operation.
Detailed Features
- โธHigh wear resistance
- โธExcellent impact toughness
- โธFast penetration rate
- โธStable drilling performance
- โธLong service life
- โธEasy bit changes
- โธCompatible with major brands
- โธCost-effective
Packaging & Shipping
Each Kaishan R32 DTH drill bit is carefully packed in a wooden case or carton, with inner protection to prevent damage during transport. Standard export packaging ensures safe delivery. For bulk orders, bits are palletized and shrink-wrapped. We ship from major Chinese ports such as Shanghai, Ningbo, or Qingdao. Delivery time is typically 15-30 days after order confirmation, depending on quantity and destination. Container loading is optimized to reduce shipping costs.
After-Sales Service
Kaishan offers a 12-month warranty on the R32 DTH drill bit against manufacturing defects. Our dedicated after-sales team provides 24-hour online support. We offer technical training and on-site assistance for proper bit usage and maintenance. Genuine spare parts are available globally through our distribution network. For any quality issues, we respond within 24 hours and provide replacement or repair solutions promptly.
Frequently Asked Questions
What is the R32 shank?+
R32 is a standard thread connection for DTH drill bits and hammers, with a nominal diameter of 32 mm. It ensures compatibility with many hammer models.
What diameters are available for the Kaishan R32 bit?+
We offer diameters from 64 mm to 102 mm. Custom sizes may be available upon request.
What rock types is this bit suitable for?+
It is designed for hard and abrasive rocks such as granite, basalt, limestone, and sandstone.
How to choose the right bit diameter?+
Select based on your drilling application and hammer size. Smaller diameters for water well, larger for mining blast holes.
What is the expected service life?+
Service life varies with rock conditions and operation. Under proper use, it can drill hundreds of meters before regrinding.
Do you provide customization?+
Yes, we can customize button shape, face design, and flushing holes for specific drilling conditions.
Related Insights
Related Projects
Where This Machine Is Used
Is This Rig Right for My Project?
Answer seven questions about your hole, depth and rock โ get a matched rig, compressor, hammer, bit and rod.
Need Technical Support?
Request information and get a quote from our engineers.
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 โ rig, compressor, hammer, bit and rod working as one system.

KAISHAN KL511
- Hole range
- 64โ127
- Drilling depth
- 25 m
Why matched
Parameter-matched to the machine on this page.

KSCY-550/13
- Working pressure
- 13 bar
- Air flow
- 15 mยณ/min
Why matched
Covers the required 10 bar / 12.6 mยณ/min air demand (rated 13 bar / 15 mยณ/min).

K3
- Hole range
- 90โ105
- Air flow
- 4.8โ12.6 mยณ/min
- Working pressure
- 10+ bar
- Bit shank
- K3** / IR3.5
Why matched
Hole range 90โ105 mm covers your requirement 76โ102 mm.
System requirement: 10 bar / 12.6 mยณ/min ยท 76โ102 mm









