Solid, one-piece-construction, easy working hollow core drilling tool for rough applications in concrete and other materials MILWAUKEE, SDS Max Shank, 3 1/8 in Core Dia, Core Center Bit - 22UP68|48-20-5420 - Grainger Product Description Hollow hammer core bit PROJAHN products are designed and manufactured for professionals and meet the expectations of craftsmen and industrial users. MILWAUKEE, SDS Max Shank, 2 in Core Dia, SDS-MAX Core Bit - 785XT7|48-20-5408 - Grainger Core Max HAWERA CORE BIT 115mm C/W SDS MAX SHANK & PILOT BIT PROJAHN Core Bit 66mm X 550mm The PROJAHN hollow hammer core bit with integrated SDS-max shank is the answer to the improved performance profiles of modern rotary hammers SDS-max Rotary Hammer Core Bit 2-5/8-in x 12-in Carbide Masonry Drill Bit For SDS-max drill Box Contains Supplied complete with centering bit and drift key We ensure our well-known PROJAHN quality on all our products., Guaranteed!