I've only cut about 50 tiles DIY, so the blade's sharpness is not an issue. As a bonus, I'll include 300 x 5mm spacers. This is a push-type tile cutter, perfect for tile DIY projects and simple tiling work. It can cut tiles up to 350mm in length and 12mm thick. <Product Features> ・Cuts tiles up to 350mm long and 12mm thick, making it perfect for DIY tile projects. ・Can also cut magnetic tiles. ・Includes a tile for practicing cutting.