Milwaukee SDS-Max 1 pc. Core 3-9/16 in. x 22 in.Milwaukees one piece carbide tipped core bits are ideal for drilling large holes where the depth is relatively shallow. The core bit cuts a kerf only. The asymmetric tooth pitch with alternating tooth geometries creates faster material pulverization. The one piece design maximizes energy transfer and the thick wall core body is durable even in large hammers. The fluted core exterior minimizes friction loss and removes debris faster. Specifications