Produce high-quality products and provide high-quality services
12 Inch High Air Pressure DTH Bits
See more pictures

The life of the DTH bit depends on the material and technology of the bit. Our drill bit is made of the most efficient high quality alloy steel.

Use quality forged steel, heat treatment and shot peening to provide a durable and reliable balance of strength and toughness.

1. Long bit life: alloy steel material has a long life, higher than similar products;

2. High drilling efficiency: the teeth of the drill bit are wear-resistant, so that the bit is always sharp and the entry speed of the teeth is greatly improved;

3. Steady drilling speed: the drill bit breaks the rock by scraping and cutting;

4. Good spacing effect: the new diamond head has strong abrasion resistance and good spacing performance, which enables the cutting teeth to be utilized efficiently;

5. Wide range of applications: Practice has proved that the bit is suitable for soft and medium-hard formations such as carbonate rock, limestone, Cretaceous rock, clay rock, siltstone and sandstone (drillability lower than 9).

Compared with general drills, especially in rock formations of grade 6-8, the effect is especially remarkable.

The submersible drill bit is from 2 inches to 40 inches in diameter and has a variety of the most common end face shapes, alloy tooth styles and shank styles to match the application and rock formations.

We can customize the drill bit according to your requirements. Different drill head shapes are selected according to different rock formations.

- +
- +
- +

Product Detail
Feedback Now

Specifications of 12 inch High Air Pressure DTH Bits
12 inch High Air Pressure DTH Bits
DHD1120 THE Drill Head Diameter(mm) NO.Air Holes Gauge Buttons Front Buttons Weight(KG)
305 4 12XØ18 36XØ16 152
311 4 12XØ18 36XØ16 157
330 4 16XØ18 42XØ16 165
346 4 16XØ19 48XØ16 178
381 4 16XØ19 48XØ16 198
SD12 305 4 12XØ18 36XØ16 156
311 4 12XØ18 36XØ16 168
330 4 16XØ18 42XØ16 180
356 4 16XØ19 48XØ16 191
381 4 16XØ19 48XØ16 200
NUMA120 305 4 12XØ18 36XØ16 152
311 4 12XØ18 36XØ16 158
330 4 16XØ18 42XØ16 165
356 4 16XØ19 48XØ16 178
381 4 16XØ19 48XØ16 195
NUMA125 305 4 12XØ18 36XØ16 170
311 4 12XØ18 36XØ16 173
330 4 16XØ18 42XØ16 182
356 4 16XØ19 48XØ16 191
381 4 16XØ19 48XØ16 200




☑ We will provide more precisely and efficiently manufacture and serve according to clients' drawings.
☑ We have professional QC team to ensure your product more better.
☑ Check the raw material before starting production.
☑ Have the random inspection during the processing.
☑ Make the 100% inspection before the shipments.
☑ We have been engaged in tapered cross bit for more than 20 years.
☑ apered cross with conical pipe drilling perfect;
☑ Reliable work, high cost performance;
☑ Accurate the dimension of taper degree perfectly matches the rods;
☑ High grade tungsten carbide inserts;
☑ The drill bit is made of high quality steel and uses the most advanced CNC machinery and heat treatment process.
about uS
To work with us is your best choice !

Send your message to us:
Chat with Jack
already 1902 messages

  • Jack 10:12 AM, Today
    Hello, dear sir/madam, welcome to our website! I’m Jack,how should I address you?