Features Superior Cutting Performance: The YG8 cemented carbide head provides exceptional sharpness, ensuring precise cuts through tile, porcelain, and brick with ease High Efficiency Design: Experience quick chip removal and smooth cutting edges, leading to a faster and more effective drilling process for all your projects Organized Storage Solution: The included black storage box keeps all 9 tools neatly arranged, making transport and access hassle-free during your daily tasks Enhanced Durability: Designed with great impact resistance, the threaded post remains securely installed, preventing loosening and ensuring reliable performance during use Premium Material Construction: Made from tungsten carbide and galvanized for corrosion resistance, this set guarantees longevity and maintains sharpness through numerous uses Features: 1、The head of the hole saw is made of YG8 cemented carbide particles, which makes the cutting blades very incisive. 2、High accuracy and smooth cutting edge ensures high cutting efficiency as well as quick chip removal, very practical. 3、The black storage box will store all the tools in an orderly manner, which simplifies the carrying for daily working. 4、These hole saws have great impact resistance, and the threaded post is firmly installed and will not loosen in using. 5、The drill bit is mainly made of tungsten carbide material, the is galvanized, it is not easy to , very . Specification: Item Type: Hole Saw Material: Tungsten Carbide Purpose: Tungsten Carbide Granular Hole Saw Colour: Black + Silver Tool Handle Type: Hex Cooling Type: External Cooling Cutting Diameter: Approx. 22mm / 0.9in, 28mm / 1.1in, 35mm / 1.4in, 44mm / 1.7in, 68mm / 2.7in, 7m / 2.9in Package List: 6 x How Saw 2 x Mandrel 1 x L Shape Wrench 1 x Black Storage Box Note: This hole saw kit is not suitable for metal hole openings, but suitable for hole openings on ceramic tile, ceramic and red brick. Package List 6 x How Saw 2 x Mandrel 1 x L Shape Wrench 1 x Black Storage Box