Efficient and Smooth Drilling: This diamond core drill features premium aluminum alloy components and diamond grits for extended coring life. Diameter: 6 inches (152 mm), Useful Length: 14 inches (355 mm). Engineered for Exact Fitting: Equipped with a 5/8"-11 universal thread, this core drill bit allows quick and easy attachment to standard fixed or hand-held drilling machines. Compatible with various drilling equipment. Humanized Structure: The diamond wet coring bit includes chip removal holes, evenly spaced saw teeth, and a concentric axis design. This innovative construction delivers high drilling performance and durability. Simple Operation: Suitable for both dry and wet drilling applications. Begin drilling in a vertical position and proceed to desired depth. Using water during operation helps extend the bit's service life. Versatile Uses: Ideal for drilling into concrete, red brick, marble, and similar materials. Commonly used for installations such as air conditioners, pipes, stair railings, and in construction projects including highways and airports. Specifications: Model: KZ6 Material: Diamond and Aluminum Alloy Bit Diameter: 6 inches (152 mm) Useful Length: 14 inches (355 mm) Total Length: 15.7 inches (400 mm) Adapter: 5/8"-11 Item Weight: 13.5 lbs (6 kg) Package Content: 1 x Diamond Core Drill Bit 1 x Blade