| Customization: | Available |
|---|---|
| Certification: | ISO 9001:2000, SGS |
| Standard: | GB |
|
Still deciding? Get samples of $ !
Order Sample
|
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
DTH hammer bit manufacturer KINGDRILLING DTH hole opener bits are manufactured from the highest quality aircraft alloy steel. KINGDRILLLING offers a wide size of DTH hole opener bits, Guide diameter scope from 95mm to 311mm, Reamed diameter scope from 130mm to 444.5mm, DTH hammer size from 3.5", 5", 6", 8", 12" with all industry DTH hammer shanks for a match.
Function of Hole Opener Drill Bits:
Hole opener drill bits perform the critical function of enlarging pre-drilled holes to accommodate larger casing sizes or other downhole equipment. The cutting structure of the drill bit engages with the formation as it rotates, gradually increasing the hole diameter to the desired size. The pilot bit at the center helps guide the tool along the existing borehole, ensuring alignment and stability throughout the enlargement process.
During operation, the drill bit is rotated using the drilling rig's mechanical or hydraulic power, while weight is applied to the tool to facilitate cutting. The cutting elements on the drill bit's surface engage with the formation, breaking down rock or other materials to enlarge the hole. The reamer arms, if present, extend outward to further expand the hole diameter, resulting in a smooth and uniform borehole.
| Model | Guide Dia. A (mm) | Reamed Dia. B (mm) | Qty.× Button Dia (mm) | Shank | Weight (kg) | |
| Gauge | Front | |||||
| MDO95D3.5 | 95 | 130 | 6×14 2×14 | 4×11 3×11 | DHD3.5 | 8.5 |
| MDO80D3.5 | 80 | 165 | 8×14 | 8×13 6×11 | 15.1 | |
| MDO100D3.5 | 100 | 165 | 8×14 | 4×13 4×12 3×12 | 14.5 | |
| MDO110D3.5 | 110 | 165 | 8×14 | 4×13 | 15.2 | |
| MDO100D4 | 100 | 165 | 8×14 | 4×13 4×12 3×12 | DHD340 | 14.5 |
| MDO115D4 | 115 | 171.5 | 9×16 | 6×14 | 16.1 | |
| MDO75D5 | 75 | 152 | 8×18 | 6×14 2×14 2×14 | DHD350R | 35.2 |
| MDO165D6 | 165 | 191 | 10×16 | 3×14 4×14 | DHD360 | 74.5 |
| MDOD108D6 | 108 | 220 | 10×18 | 12×18 2×14 2×14 | 79.3 | |
| MDO165D6S | 165 | 254 | 12×18 | 12×16 4×14 5×14 | 65.3 | |
| MDO140D8 | 140 | 200 | 10×18 | 8×12 2×14 4×14 | DHD380 | 10.6 |
| MDO188D8 | 188 | 254 | 22×18 | 2×18 | 147.4 | |
| MDO152D8 | 152 | 305 | 14×18 | 10×18 16×16 | 107.8 | |
| MDO210D8 | 210 | 381 | 16×18 | 28×18 | 12.5 | |
| MDO216D12 | 216 | 312 | 18×18 | 15×18 6×16 6×14 | DHD112 | 133.6 |
| MDO254D12 | 254 | 375 | 18×18 | 12×18 15×18 | 136.2 | |
| MDO311D12 | 311 | 444.5 | 18×19 | 15×19 21×19 | 328.5 | |
It is suitable for Blast hole drilling, Quarrying, DTH Drilling, Water Well Drilling, Oil Drilling, Construction, Foundation Drilling.
Wuhan Kingdrilling Diamond CO., LTD, one of the most professional private manufacturer specialized in researching and producing Overburden casing drilling system, DTH hammer, DTH drill bits, Core bits, Thread bits, Taper bits, Shank adapter, Drilling rods, Coal mining picks and related rock drilling tools.
Relying on the university resources and talent advantages in High-tech region, combining with multiple laboratories in universities, we have more power focused on developing the newest products system.
Our DTH drilling tools are produced with advanced technology from Britain. The company is equipped with advanced production facilities including electron-hydraulic forging hammer, multipurpose furnace heat treatment production line, high performance CNC machines, from raw materials prepared, forging, heat treatment, mechanical processing, a completed manufacturing system is finished in the factory. Strict quality control standards make sure stable quality.
Whatever in construction, engineering, piling, water well drilling, tunneling, mining, quarrying or horizontal drilling industry, KINGDRILLING will do the best to satisfy your demands. "Kingdrilling, Keep On Striving", we'll always be in this line to serve our customers the most reliable products and the best support.
1.Pre-sale service:
If demand, assist clients to get rich and generous returns on their investments.Select DTH tools model.Design and manufacture down the hole products according to client's requirement.
2.Services during the sale:
Assist clients to draft solving plans.
Pre-check and accept Rock drill products ahead of delivery.
3.After-sale services:
Our sales team will response for your question within 24 hours (Holidays Excluded)
Technical Support will be available in any time.
Free replacement can be provided once the failure confirmed caused by our product quality.
Packed by Carton or Wooden cases.
Delivery:Transprotation: By air, By Express or By sea / By train , according to your requests.
1. How to order the products?
A: Please send the inquiry with detail item description or with Model number.
2. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy international request.
3. How to check the product are the exact one you want?
A: If possible, please attach one reference picture to avoid any misunderstanding or any links from ourwebsite for a better understanding.
4. How to make sure the quality?
A: More than 40 Years engineer to make sure the quality, 100% inspection.
5. What is the general delivery time?
A: 15 working days for DTH bits.
20-25 working days for DTH hammer
3-5 working days for ex stock items.
6. Methods of Payment
A: T/T (Telegraphic Transfer) or Western Union.
More products:
){kind=link}