WHAT YOU WILL GET: 25PCS Grassland grinder blades with size 4.5inch x .040inch x 7/8inch (115x1.0x22.2mm). Compatible with 4-1/2” angle grinders, die grinder, air cut off tool, electric cut off tool. Speeds up to 13,300 RPM and 80M/S. EXCELLENT PERFORMANCE: Our cutting blade made by premium aluminum oxide, ensures a high cutting accuracy and stable cutting rate during work. Providing top strength and durability, even when the thickness is only one millimeter. GREAT DESIGN: The cutting wheels adopt double-layer glass fiber mesh design, no cracking during your working. Middle with thickened steel arbor ring, greatly increase the clamping strength of our product, allows you to use it safely for a long time MULTI APPLICATIONS: The .040 inch thin angle grinder tool cutting disc is applicable for burr free cutting. You can use it to cut fiberglass, iron, stainless steel, ferrous metal and other metal products like steel pipe, rebar, metal sheet, etc. SOFT REMINDER: When you work, please don’t forget to wear all the necessary personal protective items to keep you safe.