Professional Cutting Discs for commercial or occasional use 4-1/2" / 115mm Cutting Discs Cutting discs suitable for all 4-1/2" grinders Suitable for cutting a wide range of materials including stainless steel / steel / copper / brass / aluminium 1mm thin cutting disc which makes it easier to cut through the materials as there is less surface area being cut allowing a lot smoother cut The discs are marked as stainless-steel cutting discs as stainless steel is regarded as one of the hardest materials, so basically if it will cut this then it will pretty much cut any material This listing is for a pack of 100 discs Comes in a metal tin for easy storage and transportation as well as to prevent the discs from getting bent or damaged before use SPECIFICATOINS OF THE CUTTING DISCS - Size of the discs - 115 x 1mm - Bore (centre hole) size - 22.23mm - Maximum RPM - 13300 RPM / 80 m/s - Pack Size - 100pc