Global Leading Diamond Tool Manufacturer.
Johnson Tools 80mm Laser Welded Diamond Dry 5/8"-11 Core Drills Bits for Granite Quartz and Marble
Description of 80mm Diamond Dry Core drill bits for Granite, Quartz, And Marble
- 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.
Features of 70mm Diamond Dry Core Drill Bits for Granite, Quartz, And Marble
1. Applications: Stone drilling in countertop, kitchen, toilet
2. Connection Type: M14, 5/8”-11 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 brazing rods, four outside and two inside, which protect the steel disc, and extend its life. Outer diameter is less than or equal to OD18 do not have a brazing rod.
6. Delivery time: Around 15 days
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.
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PRODUCT ADVANTAGES
Our customer service team is a dedicated, hard-working group specially selected for their enthusiasm and commitment to providing excellent customer service. They offer advice, answer any queries.
PRODUCT parameter
| 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) |
product usage
HOW DOSE A DRY DIAMOND CORE BIT WORK?
A diamond core bit does not cut but works by milling. During the sharpening process performed at the factory, individual diamond crystals are exposed on the face and sides of the segment and it is these that do the milling work. The metal matrix holds each diamond in place. During the work, each diamond is supported by a comet’s tail which strengthens the supporting action of the bond immediately “behind” the diamond crystals.
Noteworthy Features:
Engineered for precision in core drilling within thinner stone applications like granite, marble, sandstone, and limestone. Elevate your drilling experience with finesse in delicate stone materials.
Our customers have consistently praised the excellence of our products. We are confident that you too will experience the same level of satisfaction. Should you require any customization, please do not hesitate to contact us. As the leading manufacturer of diamond tools, we are committed to providing you with the best solution possible.
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