| Customized: | Customized |
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| Standard: | SGS |
| Length: | 6mm,8mm,10mm-100mm |
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1.Description of Dry Core Drills
Core drilling thinner applications of stone, including granite, marble, sandstone, limestone, and so on.
Premium grade core bits that deliver fast drilling speed and extend product life.
Use application with core drilling machines and hand drills.
Production strictly according to customer requirements.
Size could be customized.
2. Features of Dry Core Drills
1. Applications: Stone drilling in counter top, kitchen, toilet
2. Connection Type: 1/2" shaft, 5/8"-11 shaft,M14 shaft
3. Segment type: Crown segment or normal segment
4. Welding way: Outer diameter ≤ 18mm is silver soldering, ≥ 20mm is laser welding.
5. Selling point:Each drill bit has the brazing rods, four outside and two inside, which protect the steel disc, extend the life. Outer diameter is less than or equal to OD18 do not have brazing rod.
6. Delivery time: Around 7-20days
7. Price: Large quantities, price concessions. The quantity is greater than 100 per order and can be offered for a discount of 5%.
8. Accept sample order to have a test.
DETAILS SPEC.:
| Dry core bits for granite | ||||
| Diameter | Segment Dimension | Teeth No. | Vacuum brazed Protect Teeth | |
| mm | Height | Thickness | ||
| 6 | 10 | 2 | Crown | -- |
| 8 | 10 | 2 | Crown | -- |
| 10 | 10 | 2 | Crown | -- |
| 12 | 10 | 2.5 | Crown | -- |
| 14 | 10 | 2.5 | Crown | -- |
| 16 | 10 | 2.5 | Crown | -- |
| 18 | 10 | 2.5 | Crown | -- |
| 20 | 10 | 2.5 | Crown | 4(O)2(I) |
| 25 | 10 | 2.5 | Crown | 4(O)2(I) |
| 32 | 10 | 3 | 4 | 4(O)2(I) |
| 35 | 10 | 3 | 4 | 4(O)2(I) |
| 38 | 10 | 3 | 4 | 4(O)2(I) |
| 50 | 10 | 3 | 5 | 4(O)2(I) |
| 60 | 10 | 3 | 6 | 4(O)2(I) |
| 70 | 10 | 3 | 7 | 4(O)2(I) |
| 80 | 10 | 3 | 8 | 4(O)2(I) |
| 90 | 10 | 3 | 9 | 4(O)2(I) |
| 100 | 10 | 3.5 | 9 | 4(O)2(I) |
3.Packing and shipping
1) Package: Each Core drill bits are packed in plastic box, then according to the size, normal put in an export standard carton, gross weight per carton is limited within 15-20kg.
2) Delivery way: Air Freight when gross weight is above 45kg and less than 100kg. Fast delivery.
Sea Freight when the gross weight is above 100kg. Cheaper freight charge.
Courier (TNT, DHL, FedEx, Ups, etc). Small try order, door to door service.
3) Shipping date: If we have steel body in our stock, normally shipment will be around 7-10 days. If not, usually around 20-30days.
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