The 17-Degree Bur

The 17 degree bur matches the standard 17 degree taper found on most round tapered prong and bezel settings to a shank. It solves the problem of having to hand file the correct profile on a shank to match a setting's profile: drill the shank with this bur and the result is a clean, accurate fit with no rocking, no gaps, and in most cases no need for secondary correction.

The 17 Degree Bur is engineered to solve one of the most common fitting challenges in stone setting work. Standard tapered prong and bezel settings have a natural taper that rarely matches a straight drilled hole, requiring time-consuming hand filing to achieve a proper seat. This bur eliminates that extra step.

Made exclusively for Otto Frei in Germany, this 17 degree cone shape bur is mounted on a 3/32" (2.35mm) shank and is ready for use in any quick change or adjustable chuck flex shaft handpiece or micromotor handpiece.

Features

• Precision 17 degree cone angle matches the taper on most standard prong and bezel settings when drilling shanks
• Eliminates the need to hand file a straight drilled hole to match a tapered setting
• Standard fine cut for controlled material removal and a clean finished seat
• Tungsten Vanadium construction for durability and consistent cutting performance
• Mounted on a 3/32" (2.35mm) shank

Compatibility

The 3/32" (2.35mm) shank fits any quick change or adjustable chuck flex shaft handpiece or micromotor handpiece.