ROSCHEN GROUP
Quality Changes The World!
Add to Cart
NW Impregnated hard rock Casing shoe drill bit for Exploration Core Drilling
Casing shoe drill bit
Our impregnated diamond core bits are the most commonly useful bits in the mineral exploration industry, as they have the widest range of application. The carefully selected grades of high quality synthetic diamond are distributed in the depth of impregnated bit's matrix series. The matrix layer of the "ROSCHEN" contains a uniform distribution of these crystal that are embedded in a powdered metal bond.
The matrix of our impregnated bits is designed to expose new diamonds to the bits' cutting face as wear occurs. Fast penetration rate is maintained as a result of this action.
| Diamond Drill Bit / Reaming Shell Specification | ||||||
| Item | Bit | Reamer | ||||
| Single Pipe | Double Pipe | Wire pipe | Single Pipe | Double Pipe | Wire pipe | |
| 36 | 36 | 36 | 36 | |||
| 46 | 46 | 46 | 46 | |||
| 56 | 56 | 56 | 56 | |||
| 59 | 59 | 59 | 59 | 59 | 59 | |
| Specification | 75 | 75 | 75 | 75 | 75 | 75 |
| 76 | 76 | |||||
| 77 | 77 | 77 | 77 | 77 | 77 | |
| 91 | 91 | 91 | 91 | 91 | 91 | |
| 94 | 94 | 94 | 94 | |||
| 101 | 101 | |||||
| 110 | 110 | 110 | 110 | |||
| 130 | 130 | |||||
| 150 | 150 | |||||
| 170 | 170 | |||||
| 200 | 200 | |||||
| 220 | 220 | |||||
| 225 | 225 | |||||
| 250 | 250 | |||||
| 275 | 275 | |||||
| 325 | 325 | |||||
| BQ | BQ | |||||
| NQ | NQ | |||||
| HQ | HQ | |||||
| PQ | PQ | |||||
Size Available:
| Specifications | |
| Q Series | AQ, BQ, NQ, NQ2,NQ3,HQ, HQ2,HQ3,PQ,PQ2,PQ3 |
| T, TT, T2&TB Series | T36, TT46, T2-46, TB56, TT56, T2-56, T2-66, T2-76, T2-76 Core line, T2-86, T2-86 Core line, T2-101,T2-101Core line |
| T6 Series | T6-76, T6-86, T6-101, T6-116, T6-131, T6-146 |
| B Series (ISO3552-1) | B36, B46, B56, B66, B76, B86, B101, B116, B131, B146 |
| WF Series: | HWF, PWF, SWF, UWF, ZWF |
| WT Series: | RWT, EWT, AWT, BWT, NWT, HWT (Single Tube/Double Tube) |
| WG Series: | EWG, AWG, BWG, NWG, HWG (Single Tube/Double Tube) |
| WM Series: | EWM, AWM, BWM, NWM |
| N Guage Core Bits | WLN, WLN2, WLN3, NMLC, NWG NX, NWM, NWT, TNW |
| H Gauge Core Bits | WLH, WLH-3.830, WLH-3.895, WLH3, WLHTT, HMLC, HWF-long, HWM,HWT |
Type of the bit matrix
The matrix of our impregnated bits is designed to expose new diamonds to the bits' cutting face as wear occurs. Fast penetration rate is maintained as a result of this action, also with long life using time is important, meanwhile it will keep the cost of diamond drilling to a minimum.
The optimum diamond size, concentration and matrix type are dependent on the hardness and abrasiveness of the formation to be drilled.
| Earth Feature | Rock Name | Bit Matrix Type |
| Soft | Mudstone, shale, soft sand, peat, rock, mudstone, tuff, | Flat Bottomed Type, Arc-shaped, Steps Shaped Type(PDC non-Coring Drill Bit) |
| Hard marl, marl and other hard sandy clay | ||
| Medium | Limestone, marble, dolomite, rhyolite, limonite, etc | Steps Shaped Type, Concentric Circles Type, Canine Tooth Shaped Type, Wheeling Gear Shaped Type |
| Hard | Basalt, gneiss, granodiorite, hornfels, pegmatite, diabase,etc | Steps Shaped Type, Concentric Circles Type, Canine Tooth Shaped Type,. Wheeling Gear Shaped Type |
| Solid Hard | Hard granite, the British conglomerate, quartzite, hard slate, | Steps Shaped Type, Concentric Circles Type, Canine Tooth Shaped Type,. Wheeling Gear Shaped Type |
| volcanic rocks, chert, basalt, etc |
FAQ
Terms & Conditions of Ordering:
Quality warranty:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for package to protect the products and avoid the damage during transportation. Also we can customize package according to your special requests.
Production time:
Generally need 15-25 days
Transportation:
By air, By Express or By sea according to your requests.
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 20 days for production.
in 3 working days after receiving the advance payment
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
6. Quality & Service:
A. There will be strict inspection and testing for every order before shipping out.
B. Our sales team and Technical Support will response for your question within 24 hours through skype: ROSCHEN.TOOL and WhatsApp/Wechat: +86-13764195009
C. Free replacement will provide once the failure confirmed caused or our product quality; Not satisfied with a refund.
For more information, please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
http://www.roschen.cn ; http://www.roschendrill.com
http://www.roschenmining.com ; http://www.roschendrilling.com
http://www.roschengroup.com