*KeyFeatures *Efficient & Smooth Drilling: This diamond core drill comprises premium aluminum alloy components, and high-quality diamond grits ensure longer coring life. Diameter: 8"/203mm, Useful length: 14/355mm. *Engineered For Exact Fitting: With 5/8"-11 Universal Thread, this core drill bit allows easy and fast assembling to a standard fixed core or hand-held drilling machine. It is also suitable for various devices. *Humanized Structure: Our diamond wet coring bit features chip removal holes, highly regular sawteeth, and concentric axes design. The innovative design allows it high drilling performance while keeping a long lifetime. *Simple Operation: The core drill can be used for both dry and wet to content your work needs. Start drilling at the vertical position and continue to dig deep. A little bit of water can prolong the service life. *Versatile Uses: Our concrete core drill is designed for drilling concrete, red brick, marble, and other materials on conditions, such as installing air conditioners, pipes, stair railings, highways, and airports, etc. ******************************************************************************************************* *Specifications Model: KZ8 Material: Diamond & Aluminum Alloy Bit Diameter: 8 in / 203 mm Useful Length: 14 in / 355 mm Total Length: 15.7 in / 400 mm Adaptor: 5/8in-11 Item Weight: 17 lbs / 7.7 kg ******************************************************************************************************* *Pakcage Content 1 x Diamond Core Drill Bit 1 x Blade