The 90° Hart Bur is a precision stone-setting tool designed for cutting accurate seats in prongs, channels, and flush settings. Its angled cutting profile creates clean, controlled bearing surfaces that allow stones to sit securely and evenly in their mountings. The wider 90° angle also makes it well-suited for bright cutting and detailed setting preparation across a range of jewelry and metalwork applications.
Manufactured by Busch to exacting standards. Standard 3/32" shank fits all common flex shaft handpieces, pendant drills, and micromotor systems.
Specifications
Shape: Hart Bur 90° / FIG.156C (European FIG.414)
Shank: 3/32"
Brand: Busch
Compatible with: flex shaft, pendant drill, micromotor handpieces
