The Milwaukee 48-20-5428 is a professional-grade, one-piece carbide-tipped core bit designed for high-performance drilling in concrete, brick, and block. Featuring a 3-9/16-inch diameter and an 11-3/8-inch overall length, it utilizes an asymmetric tooth pitch and alternating tooth geometries to pulverize material up to 20% faster than standard bits. Its thick-wall core body ensures durability even when used with large SDS-MAX rotary hammers, while the fluted exterior minimizes friction and accelerates debris removal. This heavy-duty steel bit is optimized for shallow large-hole applications with a maximum drilling depth of 3 inches per pass

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