General description Constructed from top-quality Vanadium steel, these engraving bits offer exceptional durability and precision. Perfect for detailed work, the burs range from 0.5 to 4 mm in size (0.5/0.6/0.8/1.0/1.2/1.4/1.6/1.8/2.0/2.3/3.0/4.0 mm), accommodating carving needs for professionals and hobbyists alike. Designed to fit seamlessly with any 3/32 inch (2.35 mm) shank rotary tools, these versatile burs are ideal for electric drills, grinders, and more. They provide the convenience and flexibility needed for intricate engraving and carving tasks, making them suitable for a wide range of materials including silver, jewelry, wood, and walnut. Technical specifications Material: Vanadium steel Shank size: 3/32 inch (2.35 mm) Burr sizes: 0.5 mm, 0.6 mm, 0.8 mm, 1.0 mm, 1.2 mm, 1.4 mm, 1.6 mm, 1.8 mm, 2.0 mm, 2.3 mm, 3.0 mm, 4.0 mm Package Contents 12 x Round Shape Ball Burr Other information