Specification: Outer Diameter: 22mm(7/8''), 25mm(1'' ), 32mm(1-1/4 ''), 35mm(1-1/2 ''), 44mm(1-3/4''), 50mm(2'') Thickness: 0.8mm(0.03”) Hole Diameter: 6.35mm(0.25”) Mandrel Shank: 6mm(1/4”) Maximum RPM: 20,000 Material: High Speed Steel Note: 1. Do not cut the hard things, remember the safe operation is the first. Please take good protection measures. 2. Must secure the screw on the top before using it. As the electric mill is a high-speed operation tool, prevent yourself from getting cut. 3. When installed, the entire Mandrel Shank should be inserted to the end, as the electric grinding speed is pretty high, if you don’t, the shaft will get bent soon or the cutting angle will be off from center. 4. At the same time, as far as possible use small diameter saw blade and low speed under the situation of meeting the usage requirements. Speed must not exceed 20,000 rpm. 5. In the selection of saw blade, the smaller your electric mill, choosing a smaller saw blade will be much stabler. 6. It suits for Mini electric mill, the diameter of the center hole is 6.35mm. Package Included: 6pcs of HSS saw discs + 1/4” mandrel Sizes: 22mm (25/32/35/44/50mm)* 0.8 * 6.35 (diameter*thickness*aperture); Mandrel Shank: 6 mm (1/4 inch) Made of strong high-speed steel, following the unique advanced scientific cutting principle. Suitable for soft metals, wood, plastic, fiberglass, aluminum and thin sheet metals. Do not cut hard objects, better for cutting wood and PVC. The blade will vibrate during work and must be handled with care to prevent the blade from jumping out. Set of 6 mini circular saw blades for Dremel rotary tools, electric power tools. DIY tool for accurate, fast and precise cutting. Color Saw Disc with 1/4 Shank Model 2a87d3b9-7dd7-4fd2-908b-d5d5df0a62c5 Brand Name NACX Style Name Circular Manufacturer NACX Material Type High Speed Steel Item Thickness 0.8 Millimeters Number of Teeth 12 Compatible Material Aluminum, Fiberglass, Plastic, Wood