Hyjoy Core Drill Bits 2 1/4" Diameter 10"/254mm Depth 5/8-11" Thread Core Bit with Welded Segments for Cured Concrete, Brick, Stone, Masonry, Includes

Package : 2 1/4" core drill bit *1; 3/8inch Shank Adapter *1 and 5/8"-11 Thread Male to SDS Plus Shank for SDS Plus Drills *1 Diameter: 2 1/4 inches / 57 mm, Inside barrel depth: 10 inches / 254 mm, Thread Type: Industry Standard 5/8-11 inches Versatile Uses: Our concrete core drill is designed for concrete, red brick, tile masonry，brick and cinder wall, asphalt, and other materials conditions, such as air conditioners, pipes, hood etc. : This core drill be dry . at the vertical position and continue to dig deep. Efficient Smooth : This core drill includes steel components, and fine grits for extended coring life, with chip removal holes, highly uniform sawteeth, and concentric axes design.