Busch Cool-Diamant Cylinder Rounded Edge Bur | Busch No. CD 21G 014 – Coarse Grit – FG | Pack of 6
The cool diamant coarse diamond dental bur from Busch & Co. is a precision-engineered rotary instrument designed for demanding restorative and prosthodontic procedures. Featuring a cylinder rounded edge geometry with coarse grit and identified by its distinctive green ring, this bur delivers efficient, controlled material removal where clinical precision is non-negotiable.
Key Features
- Shape: Cylinder with rounded edge
- Grit: Coarse (Green Ring)
- Shank: FG (Friction Grip)
- Series: Cool-Diamant
- Quantity: Pack of 6
- Made in Germany — manufactured to exacting standards
Instrument Dimensions
| Head Ø | 1.4 mm (ISO size 014) |
|---|---|
| Shank | FG (Friction Grip) — 1.60 mm Ø, 19 mm overall length (ISO 314) |
Per ISO 6360, the size number is the maximum head diameter in tenths of a millimeter. See our Busch Bur Size Chart for the full size conversion table, shank codes, and color ring guide.
Clinical Applications
The cool diamant coarse diamond dental bur is well-suited for a range of intraoral applications, including:
- Crown Preparation — efficient axial and occlusal reduction with consistent taper
- Cavity and Fissure Preparation — controlled access and outline form development
The coarse grit formulation enables rapid stock removal, making this instrument particularly valuable during the initial stages of crown and cavity preparation where speed and cutting efficiency are priorities.
German Engineering Quality
Manufactured in Germany, the cool diamant coarse diamond dental bur reflects Busch & Co.'s longstanding commitment to quality, dimensional accuracy, and consistent performance across every bur in the pack. German-made dental instruments are recognised internationally for their adherence to strict manufacturing tolerances, contributing to predictable clinical outcomes.
Independent Research: Test Winner at Innsbruck
In an independent laboratory study at the Medical University of Innsbruck, Busch’s COOL DIAMANT design achieved the highest cutting performance in both test series — outperforming same-shape, same-grit diamonds from up to ten competing manufacturers. Under standardized conditions (200,000 rpm turbine, constant 152 g load, 10–40 minutes of continuous cutting on 99.5% Al₂O₃ ceramic), the COOL DIAMANT instrument removed significantly more material than burs from Diatech, Edenta, Horico and Komet (p < 0.05), and in the second series the standard Busch diamond placed second only to its cooling-groove sibling. The authors concluded that instruments with cooling grooves deliver higher grinding performance and need replacing less often.
Source: Sander A, Beier US, Kapferer I, Dumfahrt H. Untersuchung zur Schleifleistung diamantierter Schleifkörper. Stomatologie 2009;106:29–34 (Medizinische Universität Innsbruck).
FAQ
What shank type does this bur use? This bur features an FG (Friction Grip) shank, compatible with standard high-speed handpieces.
How many burs are included? Each order includes a pack of 6 burs.
What procedures is this bur recommended for? It is recommended for crown preparation and cavity/fissure preparation where coarse grit cutting is required.
Busch Cool-Diamant Cylinder Rounded Edge Bur | Busch No. CD 21G 014...
