This HP carbide bur is a rounded tip or blunt tip flame shape. It is 6.3mm in diameter at its widest point. The head length is 13.0mm. All LeBlond HP carbide burs have a 2.35mm (3/32") shank and are 44.5mm (1 3/4") in length. These US made carbide burs are designed for fast, smooth cutting and extended life. Availability: Usually ships in 2-3 business days 6.3mm Blunt Tip flame HPC2300$8.00 Thank you for visiting A&M Instruments, Inc. Diamond Dental Burs. You will be pleased with the high quality of your dental burs and dental discs. All of our diamond and carbide cutting tools are made in the US, in Alpharetta, GA. Copyright® 2003-2011 A&M Instruments Inc 770-772-6404