1. Universal hole type fit for Bosch fit for DREMEL fit for FEIN fit for WORX etc.2. Remove hard grout between tile surface high-quality and durable specially designed for harder grouting.3. Efficient shape can be actively polished without damaging the tiles durable blades can work continuously on large projects.4. Suitable for commercial application such as cutting marble and concrete joints more stable and reliable.5. Also for sinking ducts in plaster brick pumice stone as well as autoclaved aerated concrete.Spec:Condition: 100% Brand NewItem Type: Saw Cutting BladeMaterial: Cemented CarbideQuantity: 4PcsApplication: cutting and trimming tiles cement stones and other cornersAdapted Machine: Universal hole type adapted to most domestic and foreign brands of machines fit for Bosch fit for DREMEL fit for FEIN fit for WORX etc.Package List:4 x Saw Cutting BladeNotice:Please note that the blade should be kept wet when cutting and the material should be firmly fixed to avoid vibration.