Diamond Max M14 dry drill bits and hole saws are designed for drilling in extremely hard materials such as porcelain/gravel/stone tiles, cast iron or fibreglass. These bits and hole saws guarantee superior lifetime and fast cutting even in the hardest materials. M14 thread to fit directly on an angle grinder or with appropriate adapters to fit on a polisher and straight grinder.
Dry use. No cooling required.
Clean holes: Drills clean, accurate holes without scratching the perimeter.
Superior life and durability thanks to high-quality diamond bond and strong alloy that resists bending under stress.