Makita has a deep line-up of concrete solutions, including premium carbide bits for concrete drilling. The Makita 1-1/8" x 21" SDS-Max Bit, 6-Cutter (B-61494) features premium carbide tips for efficient drilling and longer service life. The 6-cutter design is engineered for faster drilling in concrete and reinforced concrete. The bits are engineered to deliver rounder holes for more efficient anchor setting. Makita SDS-MAX 6-cutter bits are ideal for a range of general purpose drilling applications in concrete and reinforced concrete.