Dry Drill Core Bits for Professionals: diamond core drill bit with 5 inch (127mm) diameter and 13.78in/350mm total length. Deep Drilling Capability: This Drill bit offers Drilling Depth of 12.2 Inch (310mm); Ideal for extensive drilling tasks. Easy to operate: Sharp diamond coring bits make it easier to get the job you need. Versatile Adapters: Equipped with two heavy-duty Adapters - SDS Plus Shank and Square Sgank, providing flexibility and compatibility with different drilling tools compatible with a wide range of core drilling machines. Wide Range of Applications: Suitable for drilling concrete, red brick, tile masonry brick and cinder block walls, asphalt,marble rock, stone, and more; For installations conditioners, pipes, range hoods and other projects. Dry Drill Core Bits for Professionals: diamond core drill bit with 5 inch (127mm) diameter and 13.78in/350mm total length.