Features diamond material: The drill bit is crafted from high-quality diamond material, ensuring sharpness and long-term durability, making it a reliable tool for various drilling needs. Wide scope of application: Suitable for materials such as marble, concrete, and artificial stone, making it versatile for different projects and applications. Efficient oval chip drain hole design: The innovative design facilitates chip discharge, reducing cutting resistance and enhancing overall drilling efficiency. Compatible with various equipment: This drill bit opener is suitable for use with electric hand drills and bench drills, providing flexibility and convenience for different drilling setups. Stable structure and excellent performance: With a stable structure and practical design, this diamond hole saw drill bit opener delivers excellent performance, offering reliability and convenience for users. Features: 1、Drilling blade is made of diamond material, which is of sharpness and for a long using time 2、Applicable to marble, concrete, artificial stone, etc. materials, possess 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 Process: 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