@angkolmyke: SUNRISE CUTTING DISC are designed for efficient and precise cutting of a variety of materials,including metal,stanless steel,concrete and masonry.Constructed with high quality abrasive grains and reinforced with durabke bonding materials fir fast cutting speed ,long lasting performance.#sunrisecuttingdisc #sunrisecutttingdisc50pcs#cuttingdisc #metalcutting #anglegrinder