Milwaukee Diamond Drill Bit Diamond Plus 12 mm, with 1/4" hex shank

Drill bits and hole saws with a diamond grit edge are specially developed for professionals who need to drill exceptionally hard materials such as porcelain, gres-type ceramic tiles, ceramic paving stones, cast iron or fiberglass, which are difficult to drill with conventional hole saws. These hole saws guarantee a premium result and the longest service life even with the hardest materials
Limited water supply. These bits require only a limited water supply, unlike conventional diamond bits that require a constant flow of water. Simply dip the drill bit or hole saw into water before cutting each hole and then every 5 seconds during cutting.
Clean holes. Drills clean, precise holes without scratching the outer edge.
Lifespan. For a long service life, we use high-quality diamond for fast cutting and excellent solder joint for the best durability.
Durability. Robust alloy material working part that does not bend or deform easily.
Easy residue removal. Offset residue ejection slots make it easy to remove tightly packed residue.
Universal. Can be used with a drill or angle grinders equipped with a suitable adapter.