Busch Fig 414AU Carbide 90 Hart Bur-3/32" Shanks-Kit of 15- 0.90mm to 2.30mm

Cut clean, consistent seats in prongs for stone setting. The Busch Fig 414AU Carbide 90° Hart Bur Kit delivers a complete range of 15 sizes in a single plastic box, spanning 0.90mm to 2.30mm in 0.10mm increments, so bench jewelers and stone setters have the right seat size on hand for a wide variety of prong work.

Carbide construction makes these the longest-lasting burs in the Busch lineup, outlasting both tungsten vanadium and high-speed steel burs. Their advanced blade geometry, typically reserved for steel tooling, is engineered to power through the toughest metals, including platinum, titanium, and steel, while also delivering exceptional service life on standard gold alloys. The result is a lower cost per use compared to conventional burs.

Features

• 90° hart bur angle optimized for cutting prong seats
• Carbide construction outlasts tungsten vanadium and high-speed steel burs
• Advanced blade geometry for powerful, clean cutting action
• Suitable for platinum, titanium, steel, and standard gold alloys
• 15 sizes from 0.90mm to 2.30mm in 0.10mm increments
• Supplied in a plastic box for organized bench storage
• Made in Germany

Compatibility

All shanks measure 3/32", for broad compatibility with standard flex-shaft handpieces and rotary tools.

Notes

Individual burs from this kit are also available by the piece. Related carbide bur kits include the Fig 446AU 70° Hart Bur set (BAU118.600) and the Fig 413AU Traditional Setting Bur set (BAU118.835).