The Vevor core drill bit is designed for dry drilling through reinforced concrete, red brick, concrete, foam brick, and masonry. Its 3-1/2" diameter and 9-1/2" drilling depth make it suitable for creating clean, deep holes for construction and installation work. The carbon steel body with diamond-grit teeth and laser welding is built for durability and stable high-speed performance. It includes three adapters, a pilot drill, and a hex wrench for compatibility with common drills and hammer drills. Precision-ground teeth help deliver smooth, accurate, burr-free cutting.