Features High-Quality Diamond Material: Crafted from high-quality diamond material, the sharp blade is wear-resistant and , ensuring long-lasting performance and cutting for various materials. Oval Chip Hole Design: The oval chip hole design reduces cutting resistance and facilitates the discharge of chips, resulting in smoother and more efficient drilling, saving time and effort. Wide Application Range: Suitable for marble, concrete, artificial stone, and more, providing versatility for different projects, making it a must-have tool for professionals and DIY enthusiasts alike. Simple Installation: Easy to install without the need for complicated tools, saving time and effort during setup, allowing for quick and hassle- use. Ergonomic Design: Featuring an ergonomic design, this drill bit is easy to operate, compact, lightweight, and convenient to use, enhancing user comfort and control during drilling tasks. Features: 1、High qualtiy diamond material, sharped blade, wear？resistant and . 2、Oval chip hole designed, more conducive to the discharge of chips, small cutting resistance . 3、Wide application range, applicable to marble, concrete, artificial stone, etc. 4、Simple to install, no complicated tools required, save your time and effort. 5、Ergonomic designs, easy to operate, compact and lightweight, conveneint to use. Specification: Condition: 100% Item Type: Hole Saw Material: Diamond Color: Blue Process: Sintering Optional Hole Diameter: Approx. 40mm/1.6in, 45mm/1.8in, 50mm/2in Applicable Equipment: Electric Hand Drill , Bench Drill Scope of Application: central holes for marble, concrete, artificial stone, granite and other materials. Package List: 1 x Hole Saw Package List 1 x Hole Saw