Three Types of Diamond Multi-Blade Blades: Includes 2 flat de-sludging blades (for cutting bricks and cleaning narrow gaps), 1 semi-circular multi-blade blade (for large cement mortar surfaces), and 2 half-moon diamond oscillating blades (for quickly grinding floor concrete). They are perfect for bathroom renovation, DIY projects, and professional work. Durability: Industrial-grade diamond abrasives ensure superior cutting performance, with a lifespan six times longer than ordinary multi-purpose blades. They are ideal for tough tasks such as cement mortar removal, cement grinding, and tile cutting, eliminating the need for frequent blade replacement. Multi-Functional Application: These diamond oscillating blades are used for cleaning tiles with cement mortar, cutting soft tiles, plaster, and porous concrete, as well as cleaning and reworking tile grout joints. They are essential for bathroom renovation, tile laying, and home repairs. Efficiency Improvement: Use tools at low speed and avoid excessive force. Simply oscillate the blade left and right to engage more teeth with the material, improving cutting efficiency and extending blade life. Wide Compatibility (Suitable for over 98% of Oscillating Tools): With a universal interface system, they are compatible with over 98% of oscillating tools on the market. Comes with 2 adapters for easy installation., Manufacturer: LuLobtg