@huang.chang.tools: This 4.5-inch diamond tile cutting disc adopts large granular diamond abrasive for sharp cutting and extended service life. The wave serrated edge accelerates heat dissipation while delivering smooth, clean cuts without chipping tile edges. Multiple ultra-thin substrate thicknesses are available to create narrow kerfs and cut down material waste.#huangchang #diyproject #toolaccessory #tooltok #worktools