Features Premium Diamond Material: Crafted from high-quality diamond, this drill bit ensures sharpness and durability for long-lasting performance Versatile Application: Ideal for use on marble, concrete, and artificial stone, this tool offers a wide range of compatibility for various projects Efficient Chip Discharge: Featuring an innovative oval chip drain hole design, it minimizes cutting resistance and enhances chip removal for smoother drilling Broad Equipment Compatibility: Designed to work seamlessly with electric hand drills and bench drills, this opener meets diverse drilling needs Reliable Structure and Performance: Built for stability and efficiency, this diamond drilling bit provides practical and convenient solutions for all your hardware tasks Features: 1、Drilling blade is made of diamond material, which is of sharpn and for a long using time 2、Applicable to marble, concrete, artificial stone, etc. materials, poss wide scope of application 3、Efficient oval chip drain hole designs is more conducive to chip discharge, and bring small cutting resistance 4、Drill bit opener is suitable for a variety of equipment such as electric hand drills and bench drills 5、This product come with stable structure and excellent performance, practical and convenient Specification: Item Type: Diamond Hole Saw Material: Diamond Proc: Brazing Hole Diameter: Approx. 6mm / 0.2in Handle Diameter: Approx. 16mm / 0.6in Threaded interface: M14 Color: Golden Applicable Equipment: Electric hand drill, bench drill Package List: 2 x Diamond Hole Saw Package List 2 x Diamond Hole Saw