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| Categories | DTH Drill Bits |
|---|---|
| Brand Name: | MIROC |
| Model Number: | QL60 |
| Certification: | ISO |
| Place of Origin: | China |
| MOQ: | 1 |
| Price: | negotiation |
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability: | 2000pcs per month |
| Delivery Time: | 15-20days |
| Packaging Details: | wooden box or carbon box |
| type: | Odex drill bit |
| Material: | Carbon steel |
| Use: | Well Drilling |
| Application: | Coal Mining,Quarry drilling,DTH drilling |
| Diameter: | 194mm |
| Machine type: | Drilling Tool |
| Color: | Yellow,bule,green etc |
| Applications: | water well drilling, mining, etc |
| Bit Face Profile: | Flat/Drop Centre |
| Bit Shank Type: | DHD, SD, QL, Mission, COP, BR, Mach, etc. |
| Face: | Flat/Convex/Concave |
| Inserts Design: | Spherical; Ballistic |
| Machine Type: | DTH Bit |
| Package: | Plywood Case |
| Process: | Forging |
| Product Nmae: | DTH Drill Bits |
| Company Info. |
| KSQ Technologies (Beijing) Co. Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
It is suitable for drilling water wells , geothermal wells , short
miscopies ,medium mini-type grouting hole of
building , dam and harbor project .
1. Ring bit and casing shoe assembly is welded to casing prior to
drilling. Lock the assembly
into pilot bit with hammer. The pilot bit's upper shoulder engages
the shoulder of the casing shoe.
2. Hammer's percussive energy is transferred through the pilot and ring bits, crushing rock . Part of impact energy advances casing.
3. On completion of drilling and casing , the drill string with pilot bit is retrieved by a slight reverse rotation to unlock the bayonet coupling .The ring bit stays in the hole , and can be recovered only if the casing is retrieved
4.If further drilling is required on the bedrock,the pilot bit is simply repiaced by an appropriate size of standard DTH bit.
| Model | (mm) Casing OD | (mm)Maximum OD of Center Bit | (mm) Casing Shoe ID | Maximum OD of Reaming | (inch) Hammer Type |
| 146slide Block Casing | φ146 | φ123 | φ115 | φ156 | 4 |
| 168slide Block Casing | φ168 | φ146 | φ140 | φ185 | 5 |
| 178slide Block Casing | φ178 | φ156 | φ150 | φ193 | 5 |
| 183slide Block Casing | φ183 | φ160 | φ154 | φ193 | 5 |
| 194slide Block Casing | φ194 | φ178 | φ166 | φ211 | 6 |
| 219slide Block Casing | φ219 | φ203 | φ193 | φ237 | 6~7 |
| 245slide Block Casing | φ245 | φ220 | φ210 | φ260 | 6~8 |
| 273slide Block Casing | φ273 | φ251 | φ241 | φ308 | 8 |
| 325slide Block Casing | φ325 | φ298 | φ281 | φ378 | 8~10 |
| 377slide Block Casing | φ377 | φ350 | φ335 | φ430 | 10~12 |
| 406slide Block Casing | φ406 | φ380 | φ363 | φ426 | 12 |
| 560slide Block Casing | φ560 | φ530 | φ511 | φ590 | 18 |
| 610Slide Block Casing | φ610 | φ582 | φ556 | φ640 | 18 |
|
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