Busch Cool-Diamant Taper (Cone) Round Bur | Busch No. CD 51 018 – FG | Pack of 6
The diamond bur crown preparation instrument from Busch & Co. — the Cool Diamant series — is a precision-engineered rotary diamond bur crafted to meet the exacting demands of modern restorative and prosthodontic dentistry. Featuring a taper (cone) round shape with a medium grit diamond coating, this bur delivers controlled, efficient cutting performance across a range of preparation procedures.
Product Overview
- Shape: Taper (Cone) Round
- Series: Cool Diamant
- Grit: Medium
- Shank: FG (Friction Grip)
- Pack Size: 6 burs per pack
- Made in Germany
Designed for Crown Preparation
Clinicians performing diamond bur crown preparation procedures require instruments that offer consistent cutting efficiency, reduced heat generation, and reliable durability. The Cool Diamant series addresses these clinical requirements by combining a refined diamond grit distribution with a taper (cone) round geometry that is well suited for axial wall reduction and occlusal surface work. The FG (Friction Grip) shank ensures compatibility with standard high-speed handpieces used in everyday clinical settings.
Instrument Dimensions
| Head Ø | 1.8 mm (ISO size 018) |
|---|---|
| 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.
Why Choose Cool Diamant?
Manufactured in Germany by Busch & Co. GmbH, the Cool Diamant range is engineered with quality control standards appropriate for professional dental practice. The medium grit formulation supports a balance between rapid material removal and surface refinement, making each diamond bur crown preparation step more predictable. Supplied in a pack of six, this product supports consistent workflows and reduces chair-side interruptions.
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 dental handpieces.
How many burs are included per pack? Each pack contains 6 burs, providing a practical supply for multiple procedures.
What is the grit level of this diamond bur crown preparation instrument? The Cool Diamant CD 51 018 FG features a medium grit diamond coating, suited for controlled axial wall and occlusal reduction during crown preparation.

