Features High-Quality Diamond Particles: Utilizes high-quality diamond particles and a carefully formulated design to enhance sharpness and wear resistance, providing and efficient drilling performance. Versatile Straight Shank Design: Features a straight shank design, compatible with most hand electric drills on the market, ensuring a wide application range for various drilling needs. Multiple Size Options: Offers four sizes (14/16/18/20mm) to accommodate different drilling requirements, providing versatility and flexibility for diverse projects. Fast and Efficient Drilling: Compatible with electric hand drills or bench drills, enabling fast rotation speed and stable performance, resulting in rapid drilling and high efficiency. Wide Application Range: Suitable for drilling holes in granite, marble, ceramic tiles, vitrified tiles, and more, making it a versatile tool for various drilling applications. Features: 1、Select high-quality diamond particles, and a reasonable formula can effectively improve the sharpness and wear resistance. 2、Straight shank design, suitable for most hand electric drills on the market, with a wide range of applications. 3、Four sizes of 14/16/18/20mm are provided to choose from, which can meet different needs. 4、Used with electric hand drill or bench drill, with fast rotation speed, fast drilling speed, stable performance and high efficiency. 5、Hole saws are suitable for drilling holes in granite, marble, ceramic tiles, vitrified tiles, etc. Specification: Item Type: Drill Hole Saw Material: Diamond Drilling Specification: Approx. 14mm / 0.55in 16mm / 0.63in 18mm / 0.7in 20mm / 0.8in Shank Diameter: Approx. 10mm / 0.4in Working Depth: Approx. 58mm / 2.3in Applicable Equipment: Hand drill, bench drill Package List: 1 x Drill Hole Saw Package List 1 x Drill Hole Saw