DescriptionThe rotary file kit for using with most small rotating tools, and helping you get things done more easily and quickly, to meet most of your drilling needs. Different shapes of rotary bits are suitable for woodworking, engraving, drilling, beveling, grooving, reaming, shaping, hollowing, widely applied in different kinds of materials such as wood, plastic or resin models.Features- Color: Golden. - Material: High steel. - Size: 7.00X0.80X0.80cm/2.75X0.31X0.31 inch. - The package contains 5 pieces rotary bit burrs in different shapes. - Which can satisfy your various working needs, enough to apply and change. - The rotary burr is made of high speeds steel, sturdy to use for a long time. - Help you to improve the whole work efficiency, bring you more convenience. - Can be processed cast iron, cast steel, carbon steel, alloy steel, stainless steel, copper, aluminum and other metals, and marble, jade, bone and other non-metallic.