Diamond hole saw 3-1/2 in core drill bit for hard materials
Diamond core drill bit for tiles, granite, marble, ceramic and glass. High-tech vacuum-brazed diamond coating for longer life; suitable for dry and wet drilling with coolant. One customer notes easy cutting through quartz-resin Krauss sinks and marble tiles
Highlights
- vacuum brazed diamond coating
- 90mm core drill bit
- multi-material compatibility (dry/wet)
Pros
- diamond-coated for durability
- suitable for dry and wet drilling
- fits angle grinders & wet polishers
- designed for hard materials like granite and marble
Cons
- slight chipping reported by some customers
- mixed opinions on ease of use
Best For
Features
- 3-1/2" (90mm) diamond core drill bit with vacuum-brazed diamond coating for extended life
- Suitable for dry and wet drilling with coolant for hard materials like granite and marble
- Cuts holes in granite, marble, ceramic, glass, porcelain tiles and bricks with minimal chipping
- Compatible with angle grinders and wet polishers via 5/8-11 threading
- Heavy-duty body with two-way flutes for faster debris removal
