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 secure attachment to standard fixed or hand-held drilling machines. Compatible with a variety of drilling equipment. Humanized Structure: The diamond wet coring bit includes chip removal holes, evenly spaced saw teeth, and a concentric axis design. This innovative structure delivers high drilling performance and durability. Simple Operation: Suitable for both dry and wet drilling applications. Begin drilling in a vertical position and maintain steady pressure. Using water during operation helps enhance bit longevity. Versatile Uses: Designed for drilling into concrete, red brick, marble, and similar materials. Ideal for applications such as installing air conditioners, pipes, stair railings, and use in highway and airport construction. 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 inch-11 Item Weight: 13.5 lbs (6 kg) Package Content: 1 x Diamond Core Drill Bit 1 x Blade