Item Type: Wet Diamond Core Drill Bit <br>Material: Diamond, Alloy Steel <br>Total Length: Approx. 240mm/9.5in<br>1、5/8?11 Universal Thread: This core drill has a 5/8?11 universal thread for easy and quick assembly to a standard fixed core or hand held drill press. It also works on various devices. <br>2、Innovative Design: Our diamond wet core bits feature chip evacuation holes, highly regular serrations and a concentric shaft design. <br>3、Alloy Steel, Diamond: This diamond core drill is composed of excellent alloy steel components, and diamond abrasive grains ensure longer core life. <br>4、Dry and Wet Drilling: Core drills are available for both dry and wet drilling to suit your job needs. Drill holes from a vertical position and add a little water can extend the life. <br>5、Scope of Application: Our core drilling bit is used to drill concrete, red brick, marble and other materials for installations such as air conditioning, plumbing, stair railings, highways and airports.Manual measurement, the actual size shall prevail<p>1 x&nbsp;Wet&nbsp;Diamond&nbsp;Core Drill Bit</p><p>1 x Positioning Drill</p><p>1 x Hex Key</p><p>1 x Saw Blade</p><p>1 x Washer</p>