Factory Promotional 3 Inch Core Bit - Core Drill Bit – Sinovo Detail:
Technical Parameters
| Products | Problems | Settlement |
| Diamond core bit | 1. Size, and/ or technical parameters (matrix etc.) are different Replace from the requirements of client’s purchase order. | Replace |
| 2. Thread can not fit clients barrel. | Repair or replace | |
| 3. Break down a piece from matrix, and the volume of the piece exceed 2mm x 2mm x2mm, and such break is not Replace caused by drilling. | Replace | |
| 4. Matrix falling not caused by drilling. | Replace or return | |
| 5. Groove on matrix caused by manufacturer. | Replace or return | |
| 6. Drilling speed is obvious slower than congener products caused by manufacturer. | Replace, and each item quantity does not exceed 3 pieces. |
|
| 7. Bit life is obvious short caused by manufacturer. | ||
| 8. Breaking down of matrix, falling matrix, groove and short bit life caused by operating reasons- drill rod sticking, premature failure of the bit crown and hole bottom not to be cleaned. | Be excluded from Quality Guarantee | |
| 9. Short bit life and abrasion caused by drilling machine, drilling techniques or parameters. | ||
| 10. Properly worn and the matrix is finished. | ||
| 11. Thread damaged and distortion made by operator. | ||
| 12. Body crack in drill. | Replace or return |
Dimensions of core bits
| A-Gauge Core Bits | ||||||||||
| Size | Outside diameter | Inside diameter | Availability | |||||||
| inch | mm | inch | mm | IMP. | S.S. | P.C. | PDC | TSP | E.P. | |
| WLA | 1.880/1.870 | 47.75/47.50 | 1.607/1.057 | 27.10/26.85 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLA-RSG | 1.895/1.885 | 48.13/47.88 | 1.067/1.057 | 27.10/26.85 | Yes | Yes | Yes | Yes | Yes | Yes |
| AWG, AX | 1.880/1.870 | 47.75/47.50 | 1.190/1.180 | 30.23/29.97 | Yes | Yes | Yes | Yes | Yes | Yes |
| AWM | 1.880/1.870 | 47.75/47.50 | 1.190/1.180 | 30.23/29.97 | Yes | Yes | Yes | Yes | Yes | Yes |
| AWT | 1.880/1.870 | 47.75/47.50 | 1.286/1.276 | 32.66/32.41 | Yes | Yes | Yes | Yes | Yes | Yes |
| LTK48 | 1.880/1.870 | 47.75/47.50 | 1.394/1.384 | 35.40/35.15 | Yes | Yes | Yes | Yes | Yes | Yes |
| B-Gauge Core Bits | ||||||||||
| WLB | 2.350/2.340 | 59.69/59.44 | 1.438/1.428 | 36.52/36.27 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLB-RSG | 2.365/2.355 | 60.07/59.82 | 1.438/1.428 | 36.52/36.27 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLB-2.400 | 2.045/2.395 | 61.09/60.83 | 1.438/1.428 | 36.52/36.27 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLB3 | 2.350/2.340 | 59.69/59.44 | 1.325/1.315 | 33.65/33.40 | Yes | Yes | Yes | Yes | Yes | Yes |
| BWG, BX | 2.350/2.340 | 59.69/59.44 | 1.660/1.650 | 42.16/41.91 | Yes | Yes | Yes | Yes | Yes | Yes |
| BWM | 2.350/2.340 | 59.69/59.44 | 1.660/1.650 | 42.16/41.91 | Yes | Yes | Yes | Yes | Yes | Yes |
| BWT | 2.350/2.340 | 59.69/59.44 | 1.755/1.745 | 44.58/44.32 | Yes | Yes | Yes | Yes | Yes | Yes |
| LTK60 | 2.350/2.340 | 59.69/59.44 | 1.742/1.732 | 44.25/44.00 | Yes | Yes | Yes | Yes | Yes | Yes |
| TBW | 2.350/2.340 | 59.69/59.44 | 1.785/1.775 | 45.34/45.09 | Yes | Yes | Yes | Yes | Yes | Yes |
| N-Gauge Core Bits | ||||||||||
| WLN | 2.970/2.960 | 75.44/75.19 | 1.880/1.870 | 47.75/47.50 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLN-RSG | 2.985/2.975 | 75.82/75.57 | 1.880/1.870 | 47.75/47.50 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLN-3.032 | 3.037/3.027 | 77.14/76.89 | 1.880/1.870 | 47.75/47.50 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLN2 | 2.970/2.960 | 75.44/75.19 | 2.000/1.990 | 50.80/50.55 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLN2-RSG | 2.985/2.975 | 75.82/75.57 | 2.000/1.990 | 50.80/50.55 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLN3, NWLTT | 2.970/2.960 | 75.44/75.19 | 1.780/1.770 | 45.21/44.96 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLN3-RSG | 2.985/2.975 | 75.82/75.57 | 1.780/1.770 | 45.21/44.96 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLN3-3.032 | 3.037/3.027 | 77.14/76.89 | 1.780/1.770 | 45.21/44.96 | Yes | Yes | Yes | Yes | Yes | Yes |
| NMLC | 2.970/2.960 | 75.44/75.19 | 2.052/2.042 | 52.12/51.87 | Yes | Yes | Yes | Yes | Yes | Yes |
| NWG, NX | 2.970/2.960 | 75.44/75.19 | 2.160/2.150 | 54.86/54.61 | Yes | Yes | Yes | Yes | Yes | Yes |
| NWM | 2.970/2.960 | 75.44/75.19 | 2.160/2.150 | 54.86/54.61 | Yes | Yes | Yes | Yes | Yes | Yes |
| NWT | 2.970/2.960 | 75.44/75.19 | 2.318/2.308 | 58.87/58.62 | Yes | Yes | Yes | Yes | Yes | Yes |
| TNW | 2.970/2.960 | 75.44/75.19 | 2.394/2.384 | 60.80/60.55 | Yes | Yes | Yes | Yes | Yes | Yes |
| H-Gauge Core Bits | ||||||||||
| WLH | 3.770/3.755 | 95.76/95.38 | 2.505/2.495 | 63.63/63.38 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLH-RSG | 3.790/3.755 | 96.27/95.89 | 2.505/2.495 | 63.63/63.38 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLH-3.830 | 3.840/3.825 | 97.54/97.16 | 2.505/2.495 | 63.63/63.38 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLH-3.895 | 3.897/3.882 | 98.98/98.60 | 2.505/2.495 | 63.63/63.38 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLH3, WLHTT | 3.770/3.755 | 95.76/95.38 | 2.411/2.401 | 61.24/60.99 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLH3-RSG | 3.790/3.755 | 96.27/95.89 | 2.411/2.401 | 61,24/60.99 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLH3-3.830 | 3.840/3.825 | 97.54/97.16 | 2.411/2.401 | 61.24/60.99 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLH3-3.895 | 3.897/3.882 | 98.98/98.60 | 2.411/2.401 | 61.24/60.99 | Yes | Yes | Yes | Yes | Yes | Yes |
| HMLC | 3.897/3.882 | 98.98/98.60 | 2.505/2.495 | 63.63/63.38 | Yes | Yes | Yes | Yes | Yes | Yes |
| HWF-Long | 3.912/3.897 | 99.36/98.98 | 3.005/2.995 | 76.33/76.08 | Yes | Yes | Yes | Yes | Yes | Yes |
| HWF-Short | 3.897/3.882 | 98.98/98.60 | 3.005/2.995 | 76.33/76.08 | Yes | Yes | Yes | Yes | Yes | Yes |
| HWG, HX | 3.897/3.882 | 98.98/98.60 | 3.005/2.995 | 76.33/76.08 | Yes | Yes | Yes | Yes | Yes | Yes |
| HWM | 3.897/3.882 | 98.98/98.60 | 3.005/2.995 | 76.33/76.08 | Yes | Yes | Yes | Yes | Yes | Yes |
| HWT | 3.897/3.882 | 98.98/98.60 | 3.192/3.182 | 81.08/80.82 | Yes | Yes | Yes | Yes | Yes | Yes |
| P-Gauge Core Bits | ||||||||||
| WLP | 4.815/4.795 | 122.30/121.8 | 3.350/3.340 | 85.09/84.84 | Yes | Yes | Yes | Yes | Yes | Yes |
| WLP3 | 4.815/4.795 | 122.30/121.8 | 3.275/3.265 | 83.18/82.93 | Yes | Yes | Yes | Yes | Yes | Yes |
| PWF-Long | 4.755/4.740 | 120.78/120.4 | 3.635/3.620 | 92.33/91.95 | Yes | Yes | Yes | Yes | Yes | Yes |
| PWF Short | 4.735/4.715 | 120.27/119.7 | 3.635/3.620 | 92.33/91.95 | Yes | Yes | Yes | Yes | Yes | Yes |
| S-Gauge Core Bits | ||||||||||
| SWF-Long | 5.755/5.740 | 146.18/145.8 | 4.447/4.432 | 112.95/112.5 | Yes | Yes | Yes | Yes | Yes | Yes |
| SWF-short | 5.735/5.715 | 145.67/145.1 | 4.447/4.432 | 112.95/112.5 | Yes | Yes | Yes | Yes | Yes | Yes |
| U-Gauge Core Bits | ||||||||||
| UWF-Long | 6.880/6.860 | 174.75/174.2 | 5.515/5.495 | 140.08/139.5 | Yes | Yes | Yes | Yes | Yes | Yes |
| UWF-Short | 6.855/6.825 | 174.12/173.3 | 5.515/5.495 | 140.08/139.5 | Yes | Yes | Yes | Yes | Yes | Yes |
| Z-Gauge Core Bits | ||||||||||
| ZWF-Long | 7.880/7 .860 | 200.15/199.6 | 6.515/6.495 | 165 48/164.9 | Yes | Yes | Yes | Yes | Yes | Yes |
| ZWF-Short | 7.855/7.825 | 199.52/198.7 | 6.515/6.495 | 165.48/164.9 | Yes | Yes | Yes | Yes | Yes | Yes |
Notes
1. Imp. – Impregnated Diamond Type
2. S.S. – Surface Set Diamond Type
3. T.C. – Tungsten Carbide Type
4. PDC – Polycrystalline Diamond Compact Type
5. TSP – Thermally Stable Diamond Polycrystalline
6. E.P. – Electroplated Diamond Type
Any further information about the specification, after sale service, price, etc, please feel free to contact with us.
Q1: Are you a manufacturer, trading company or a third party?
A1: We are a manufacturer. Our factory is located in Hebei Province near the capital Beijing, 100km away from Tianjin port. We also have our own trading company.
Q2: Wonder if you accept small orders?
A2: Do not worry. Feel free to contact us. In order to get more orders and give our clients more convenience, we accept small orders.
Q3: Can you send products to my country?
A3: Sure, we can. If you do not have your own ship forwarder, we can help you.
Q4: Can you do OEM for me?
A4: We accept all OEM orders, just contact us and give me your design. We will offer you a reasonable price and make samples for you ASAP.
Q5: What's your payment terms?
A5: By T/T, L/C AT SIGHT, 30% deposit in advance, balance 70% before shipment.
Q6: How can I place the order?
A6: First sign the PI, pay deposit, then we will arrange the production. After finished production you need to pay the balance. Finally we will ship the goods.
Q7: When can I get the quotation?
A7: We usually quote you within 24 hours after we get your inquiry. If you are very urgent to get the quotation, please call us or tell us in your mail, so that we could regard your inquiry priority.
Q8: Is your price competitive?
A8: Only good quality product we supply. Surely we will give you the best factory price based on superior product and service.
Product detail pictures:






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We believe in: Innovation is our soul and spirit. High-quality is our life. Purchaser need is our God for Factory Promotional 3 Inch Core Bit - Core Drill Bit – Sinovo, The product will supply to all over the world, such as: Lisbon, Grenada, Greece, We will continue to devote ourselves to market & product development and build a well-knit service to our customer to create a more prosperous future. Please contact us today to find out how we can work together.
This manufacturers not only respected our choice and requirements, but also gave us a lot of good suggestions, ultimately, we successfully completed the procurement tasks.
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