- Type: Friction Grip Oral Surgical burs. - Fit for High-Speed Handpiece. - Shank type: FG surgical (25mm) (same with MIDWEST FGOS). - Shank diameter: 1.6 mm. - Overall length(mm): 25. - Diameter: 014 mm. - Head Diameter:4.2 mm. **For further product information, please contact Chat Support**