MK-190 Premium Wet Diamond Core Bits
- Drill through porcelain, granite, marble, tile, stone, and masonry
- No bond to wear away - diamond particles work at peak performance at all times
- Vacuum Braze Technology provides the strongest bond between diamond particles and the drilling surface of core bit
- Drilling Time Reduced by 50% compared with traditional metal-bond core bits
- Core ejector slot clears debris and plugs during repeated drilling operations
- Designed to operate on any corded or battery operated hand drill
- Hollow bore creates a core that guides the drill
- Heavy-duty, single piece construction
| Diameter | Part # | |
| 3/16" | (5mm) | 166641 |
| 1/4" | (6mm) | 166642 |
| 9/32" | (7mm) | 166972 |
| 5/16" | (8mm) | 166643 |
| 3/8" | (10mm) | 166644 |
| 1/2" | (13mm) | 166645 |
| 5/8" | (15mm) | 166646 |
| 3/4" | (20mm) | 166647 |
| 1" | (25mm) | 166648 |
| 1-1/4" | (30mm) | 166973 |
| 1-3/8" | (35mm) | 167169 |
| Ceramic Tile Hardness Grades |
Soft | Medium | Medium/ Hard |
Hard | Extremely Hard |
| Porcelain | ‚ | • | • | • | • |
| Glass | • | • | • | ||
| Quary | • | • | • | • | • |
| Terracotta | • | • | • | ||
| Glazed | • | • | • | ||
| Terrazzo | • | • | |||
| Agglomerate | • | • | • | • | • |
| Cement | • | • |
Click here to download drill usage instructions in PDF format.
