Diamond Core Drill Bits，Diameter 13"/330mm Drilling Depth Core Bit Turbo Laser-Welded Segments for Cured Concrete with Rebar, Brick, Block, Masonry, Equipped with two heavy-duty converters Deep Drilling Capability: This Drill bit offers Drilling Depth of 13 Inch (330mm); 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 compatibility 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. Diamond Core Drill Bits，Diameter 13"/330mm Drilling Depth 5/8-11"Thread Core Bit Turbo Laser-Welded Segments for Cured Concrete with Rebar, Brick, Block, Masonry, Equipped with two heavy-duty converters