RA 37 Inverted Cone Carbide Bur

The RA 37 is a premium tungsten carbide bur designed for undercut creation, cavity floor flattening, and mechanical retention. Its inverted conical profile for creating undercuts and flat cavity floors delivers clean, efficient cutting with minimal vibration and excellent tactile feedback.

Key Features

• Shape: Inverted Cone — inverted conical profile for creating undercuts and flat cavity floors
• Diameter: 3.7 mm
• Material: High-quality tungsten carbide for long-lasting sharpness and durability
• Shank: RA (Latch Type) — compatible with slow-speed contra-angle handpieces

Common Applications

• Undercut creation for mechanical retention
• Cavity floor flattening
• Locking form placement
• Retentive groove preparation

Why Choose Koyo Dental?

All Koyo Dental burs are manufactured to strict quality standards and shipped from our US warehouse in Irvine, CA. Enjoy factory-direct pricing, same-day shipping, and consistent cutting performance across every bur in the pack.