Feature:* .* Flap disc, mainly used for metal grinding.* High efficiency, low wear, wear resistance and long service life.* Very suitable for families, studios, amateurs, businessmen, builders and DIY enthusiasts.* Suitable for grinding welds of general metals, carbon steel, alloy steel, stainless steel, cast iron and non-ferrous metals.* Super cutting force, suitable for high-speed cutting.* Practical and .* Application; Used for polishing, grinding and cutting metal and wood products . . . Details:Size:Black double patch diameter is 75mm*1.2mm thickness*10mm hole. One piece weighs 15g High speed hacksaw blade with diameter 75mm*1mm thickness*10mm hole, one piece weighs 25g Blue sand blind with hole 75mm*10mm, one piece weighs 40gPackage included:3 inch blind + 3 inch high speed hacksaw blade + 3 inch cutting blade