General description 12 Pcs Cylinder-Cone Shape Carving Burr Sets are designed for precision carving and shaping of various materials including silver, jewelry, wood, walnut, olive core, beads, and precious soft metals. Made from premium Vanadium Steel, these burrs are characterized by their high hardness, durability, and resistance to rust. Technical specifications Material: Vanadium Steel Shank size: 3/32 inch (2.35 mm) Burr sizes: 0.8 mm, 1 mm, 1.2 mm, 1.5 mm, 1.7 mm, 2 mm, 2.2 mm, 2.5 mm, 2.7 mm, 3 mm, 3.5 mm, 4 mm Measurement error: +/- 1-3 cm Compatibility and accessories Compatible with rotary tools, drills, grinders, and hanging mills Other information Package Contents: 12 x burr Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.