Milwaukee Diamond Max Diamond Drill Bit, 1/4" Hex Shank

Diamond drill bits and hole saws are designed for cutting holes in extremely hard materials, such as porcelain/gres/quarry tiles, cast iron, or fiberglass. These bits and hole saws ensure excellent lifespan and fast cutting even in the hardest materials. They can be used with a drill or angle grinders equipped with the appropriate adapter.
Minimal water cooling: there is no need for a constant flow of water to cool the bits and hole saws during cutting. For optimal performance, simply immerse them in water before starting to cut and every 5 seconds during cutting.
Clean holes. Drills clean, precise holes without scratching the outer edge.
Excellent lifespan and durability thanks to high-quality diamond bonding and a strong alloy body that withstands bending under pressure.
Easy core removal thanks to multiple access slots.
Easy debris removal. Offset debris ejection slots facilitate the removal of tightly spaced debris.
Universal. Can be used with a drill or angle grinders equipped with the appropriate adapter.