ZENESIS™ Obsidian Diamond Core Bit is the most versatile tile and stone core bit ever made. It
comes with more features than any core bit on the market.
New technology allows this bit to drill
perfect clean holes in porcelain, granite, marble, ceramic, DEKTON and quartzite dry or wet!
Exclusive ZENESIS™ pattern diamond segments give up to 70% longer life over random pattern
segments.* Unique drop segments for added durability and weld protection. First core bit ever
with depth gauge lines at 20mm and 30mm! Brazed diamonds on the outside and inside of barrel
prevent binding and make it easy to remove plug 5/8-11 thread fits all grinders and polishers
- Must be used wet
- Drills Engineered Stone, All Natural Stone, and Quartzite
| Part No. | Diameter | Segment | Arbor Size |
| ZDGUL032B4 | 1 - 1/4" | 8mm | 5/8"-11 Threaded |
| ZDGUL035B4 | 1 - 3/8" | 8mm | 5/8"-11 Threaded |
| ZDGUL038B4 | 1 - 1/2" | 8mm | 5/8"-11 Threaded |
| ZDGUL051B4 | 2" | 8mm | 5/8"-11 Threaded |
| ZDGUL057B4 | 2 - 1/4" | 8mm | 5/8"-11 Threaded |
| ZDGUL062B4 | 2 - 1/2" | 8mm | 5/8"-11 Threaded |
| ZDGUL075B4 | 3" | 8mm | 5/8"-11 Threaded |