ITEM NAME:6pc Mini HSS Saw Blade Discs Hish Speed Steel Mandrel Set for Rotary Tool CPL.With the high-speed-steel (HSS) blades you will be cutting through Aluminium, brass, copper, wood, plastic and more with ease! 1/8" Shank Mandrel. 1 x Mandrel. We'd like to settle any problem in a friendly manner.