ZFE HSS Saw Blades Rotary Tool Circular Saw Blade Mandrel -1/8" (3mm) Shank For Dremel,Proxxon Rotary Tools (Universal Angle Grinder Key) Material: HSS Maximum RPM: 20,000 Hole diameter: 6.35mm Mandrel diameter: 3.17mm Blade Diameter 1x HHS Saw Blade(22*0.8*6.35mm) 1x HHS Saw Blade(25*0.8*6.35mm) 1x HHS Saw Blade(32*0.8*6.35mm) 1x HHS Saw Blade(35*0.8*6.35mm) 1x HHS Saw Blade(44*0.8*6.35mm)