Concord Blades CBW03000SP 3 Inch Wet Concrete Diamond Core Drill Bit</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>10 mm segment height， 3.5mm Segment Width， 1-1/4" -7mm Arbor</li><li>Use Wet Only</li><li>This core bit is used for wet drilling on cured concrete with hard aggregate and medium to heavy steel reinforcement， and asphalt overlay on concrete</li><li>Does not come with a pilot bit</li><li>14" tube length</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/31Hf54lx-uL.jpg' noproxy></br>