SUITABLE FOR MANY MATERIALS: Metals,such as cast iron,cast steel,bearing steel,high carbon steel,chrome-nickel alloy,bronze,brass,etc . non-metals,such as wood,plastic,ceramic tiles,marble,jade,bone,etc. Suitable for Machining,grinding,engraving,polishing of materials with a hardness of HRC70 and a lower hardness.SIZE: The burrs are 43.2-50.7mm long. The shaft length is 32.4-35mm long. Uniform 3mm shaft. Short and compact. 10 different milling pins,e.g. conical milling cutters,V milling cutters,cylinder milling cutters. Your DIY needs are fully met by the different cutters. Mini-sized rasp burr is easier to control when processing. Suitable for fine,precise processing.TOP MATERIAL: Drilling machine milling cutter made of tungsten steel. More robust and durable than HSS milling cutters or mounted points. Finely and cleanly processed. The small rasps are sharp enough for longer use.THE CARBIDE MILL 3MM are compatible with most grinding machines,cordless screwdrivers,drill presses and engraving tools,e.g. suitable for Dremel,Proxxon,Mister Tool,Einhell and similar machines.EASY STORAGE: 10 rasps come in a transparent storage box. Thanks to the sponge,they will not bump into each other. You can easily take the rasps out of the box and stow them back in it.