Specifications: Material: Resin, proprietary aluminium oxide Diameter: 75mm/3" Thickness: 1.6mm，1/16'' Application: stainless steel and metal Features: durable and stronger MAX.25,000RPM Package includes: 15Pcs cut off wheels ► Our resin metal cutting discs set is made by low loss materials with sharp blade,in good shape with no broken edges. It is durable,safe and efficient,can be easily attached to the rotary tools. ► High-speed cutting of various small pieces of metal. Ideal for cutting all kinds of metal, cutting bolts or screws or removing rusted or stripped bolts and screws by making slots in them. Ideal for cutting all kinds of metal, cuting bolts or screws or removing rusted or stripped bolts and screws by making slots in them. Perfect for carbon steel, alloy steel, and general purpose metal cutting. It can also cut stainless steel, non-ferrous metals, etc. The cut off disc grinding discs is used in conjunction with the mandrel for die grinders.