Low wear properties coupled with very long service life make these an ideal contractors or professionals SDS-plus drill bit. A high efficiency drill for heavy duty drilling into concrete, reinforced concrete, natural stone and brickwork. Designed to fit all current 2 or 3 action SDS-plus machines, either mains/site powered or cordless powered. To achieve maximum efficiency, productivity, bit/tool life and hole accuracy with your drill bit, careful selection and the use of correct speeds and feeds are essential. Use these SDS Masonry drill bits for rotary/percussion drilling in masonry, brick/block work, natural stone. For anchors, plastic plugs, fixings and pipework clearance.