This SDS Max 4 Cutter Carbide Tipped drill bit is a game changer for heavy-duty construction projects. The four cutting edges create impressive speed and accuracy when drilling into masonry or concrete. The carbide tip provides long-lasting durability and the SDS Max design ensures a secure fit in the drill .The only downside is the higher price point but the quality makes it worth the investment. Overall, this is an excellent addition to any industrial and scientific toolkit..