In the case to meet the requirements to make use of a small diameter of the and low speed, speed should not 20,000 .Material: Stainless steelQuantity: 7pcsWhen installed, saw installed in the electric mill to be inserted in the end.New and high quality.Saw smaller and more stable, too large saw prone to vibration, suitable for low speed use.Color: SilverProduct name: Saw 1x 25mm Discs1x 22mm Discs1x 35mm DiscsFor cutting: wood, PVC pipe, soft metal, plastic, aluminum, glass steel, copper, thin sheet metal and so on.Thickness: Approx. 0.8mm/0.031"2x MandrelLength of Mandrel: Approx. 52mm/2"Inner Diameter: Approx. 6.35mm/0.25"1x 32mm Discs1x 44mm DiscsSelect the saw , the smaller electric mill, to choose the smaller .Because the electric grinding speed is high, the saw is big, the clip will be less likely to cause the pole to throw the bend even to break off.high speed steel circular saw bladesDiameter: Approx. 22mm/0.86" ,25mm/0.98",32mm/1.25",35mm/1.37",44mm/1.73"Cutting speed, long life, accurate cutting.Shank Size: Approx. 3mm/0.11"High-speed steel set accurate, fast, precision cutting. Size: Approx. 6mm/0.25"