Saber Core Drill - 110mm (for medium density); This Drill Core from Saber is available in two sizes, 50mm for cutting through light and medium density materials, and 110mm for medium density materials. Ideal at cutting through bricks, blocks, and masonry, this Core Drill is designed for use with standard percussion drills and SDS plus pneumatic hammer drills. With a pilot drill and an extension rod included, you'll be able to get drilling right away.