Description
KoreX M14 diamond core drill bits are engineered for professional tilers, bathroom and wetroom installers who need clean, fast holes through porcelain, ceramic and natural stone tiles — without cracked edges or blown-out backs.
Each bit uses a turbo-segmented diamond rim to stay cool and cut efficiently in both wet and dry conditions, so you're not tied to a water feed on every job. The M14 threaded fitting connects directly to any standard angle grinder, meaning no extra adaptors or specialist drill required.
Key features
- Turbo diamond rim for fast, controlled cutting through porcelain, ceramic and natural stone
- M14 fitting — fits standard angle grinders, no adaptor needed
- Usable wet or dry for on-site flexibility
- Clean entry and exit holes with minimal chipping, ideal for tap and waste outlets, shower fittings and wetroom pipework
- Available in 9 sizes from 6mm to 50mm to cover the full range of trade drilling jobs
Sizes available
6mm, 8mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm and 50mm — select your size above.
Tips for best results
Start the bit at a slight angle to score the glaze, then bring it upright once you've broken through the surface. Keep light, steady pressure and let the diamond rim do the work — forcing the bit will shorten its life and increase the risk of cracking the tile.