- These Diamond Core Drill Bits are inlaid with more emery material, about 1.5 times more emery inlaid, can drill deep holes with stability
- 6Pcs Diamond Hole Saw Kit includes 20mm, 35mm, 40mm, 45mm, 50mm, 68mm drill bits. Aluminium portable suitcase included
- With 9/16-Inch(14mm) thread. Use on angle grinders with 14mm(9/16-Inch) connecting shaft. Can also be used for hand drills after installing the connecting shaft
- Fast and smooth drilling, long lifetime, less chipping
- Excellent results in quartz, granite, ceramic & porcelain tiles, glass, marble, slate and many types of stones
