Package List 5 x rotary file Characteristics - Color: Silver cutting burr bits - Size: Approx. 1.2x1.2x6.5cm - Material: Tungsten Steel - These metal cutter burr bits can be used on all of metal, wood, stone, porcelain, sheet metal, plastic, fiberglass, and more rotary bits. - These small metal cutter burr bits are rotary burr. - This is a 5 piece set of Tungsten Steel metal cutting burrs. - These solid high- steel routing bits / burs are tough. - They are great for engraving, wood working, cutting, grinding, deburring, reaming, and much more.Goods Informationrotary bits This is a set of 5 pieces design Tungsten Steel cutting burs.rotary burr This 6 pcs burr set includes all of the burrs shapes and sizes for cutting, carving, engraving, notching, grinding, grooving, routing, cnc milling, and more Cutting burr bits--they are great for engraving, wood working, cutting, grinding, deburring, reaming, and much more,rotary burr Rotary burr--these metal cutter burr bits can be used on all of metal, wood, stone, porcelain, sheet metal, plastic, fiberglass, and more,cutting burr bits Rotary bits--these solid high- steel routing bits / burs are tough,rotary burr This is a 5 piece set of tungsten steel metal cutting burrs These small metal cutter burr bits are Model R20ST12603FU8KF5WFZ8P8X Brand Name Hohopeti Item Weight 0.33 Pounds Manufacturer Hohopeti Material Type Alloy Steel Item Dimensions 0.47 x 0.47 x 2.56 inches Included Components rotary file