The use of high-precision external diamond grinding wheels for PCB Micro-Drill Diamond Grinding Wheel improves efficiency, improves defects such as poor finish, chipping, sawtooth, large and small faces or eccentricity, greatly reduces the phenomenon of waste in the processed micro-drills, and increases the yield rate to the extreme. This type of grinding wheel is used for precision machining of carbide and high-speed steel micro-drills with small bar diameters and shallow groove depths.
Processing Object: Grinding of micro milling cutters and drills for processing solid carbide and stainless steel welded PCBs.
Advantage: Good sharpness, excellent shape retention, long grinding wheel dressing interval, excellent surface finish of machined workpieces, etc.
Grinding Wheel Dressing
General sharpening: use white corundum grinding wheel
Shaping: use green silicon carbide
Henan JCB Superhard Materials Co., Ltd. is committed to providing efficient and economical PCB micro-drilling grinding solutions
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| Model | Outer Diameter（mm) | T （mm） | Heigh （mm） | W (mm) | X （mm） |
| 4B1 | 150 | 24 | 20,31,75 | 4,6 | 2,3 |
| 200 | 20 | 20,31,75 | 6 | 3,6 | |
| 250 | 20 | 20,31,75 | 8 | 6,8 | |
| 4A9 | 80 | 6 | 20,25,31,75,40 | 10 | 6 |
| 100 | 8 | 20,31,75 | 10 | 6 | |
| 150 | 8 | 20,31,75 | 10 | 6 | |
| 3A1 | 100 | 6 | 20,31,75 | 6 | 1,4 |
| 125 | 8 | 20,31,75 | 6,8 | 4,1.5 | |
| 150 | 6,8 | 20,31,75 | 6,8 | 4,2 |
If you need special specifications and sizes, we can customize them according to your needs
