Description: 1/4 Shank fits all drills High-carbon steel tempered and hardened for long-life Use for grinding, polishing, carving, trimming, burnishing wood surface Material: 45# Steel Shank diameter: 6mm/1/4'' Length: 12mm/0.47'' Shape: Cylindrical, ball, conical, pointed tree, inverted cone Color: Black Package Includes: 1 Set of 5 Pieces Rotary File Bits Note: As different computers display colors differently, the color of the actual item may vary slightly from the above images. There is 2-3% difference according to manual measurement. Please check the measurement chart carefully before you buy the item
