| Rotary Burrs Overall Length: 100mm/ 4 Inch; Shank Diameter: 3mm/ 1/8 Inch; Cutting Edge Diameter: 6mm Made of tungsten carbide, use for rotary burr, good toughness, high micro hardness, high abrasion resistance High performance on processing copper, aluminum, alloy, iron, marble, jade, steel, glass, wood, plaster and so on. Double cut burrs with 10 different cutting shapes, features very fine chip size and high cutting efficiency, fits dremel and most small rotary tools. Ideal rotary tool for metal polishing, model casting, welding, chamfering, deburring, wood carving, jade making, marble engraving, finishing, grinding etc. | |