Busch Cool-Diamant Cylinder Round Bur | Busch No. CD 33G 012 – 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 crown preparation procedures. Featuring a cylinder round geometry with a coarse grit and green ring color-coding, this bur delivers aggressive, efficient cutting suited to high-throughput clinical environments.
Independently tested. In the Medical University of Innsbruck cutting study, Busch’s cooling-groove diamond achieved the highest total cutting length of every bur tested over 40 minutes of continuous use. Read the Innsbruck Study.
Product Overview
- Shape: Cylinder Round
- Series: Cool Diamant
- Grit: Coarse
- Ring Color: Green
- Shank: FG (Friction Grip)
- Reference: CD 33G 012 FG
- Pack Quantity: 6 burs per pack
- Made in Germany
Key Features
The cool diamant coarse diamond dental bur is manufactured in Germany to exacting quality standards. The cylinder round form factor is ideally suited for crown preparation, offering consistent side-wall reduction and shoulder definition. The coarse grit designation ensures rapid material removal while the FG shank provides secure, vibration-free engagement in standard high-speed handpieces.
Buying this instrument as a pack of 6 supports consistent protocol management across multiple operatories, reducing chair-side delays and ensuring each preparation benefits from a fresh, optimally performing bur.
Indicated Use
This cool diamant coarse diamond dental bur is primarily indicated for crown preparation, as illustrated by the included Crown Preparation reference imagery. Its coarse grit profile makes it well-suited for initial axial reduction and occlusal reduction stages where aggressive cutting speed is prioritized.
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).
Instrument Dimensions
| Head Ø | 1.2 mm (ISO size 012) |
|---|---|
| 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.
Specifications: Busch No. CD 33G 012
| Busch figure | CD 33G |
| Shape | Cylinder Round |
| ISO size / head diameter | 012 (1.2 mm max head Ø) |
| Grit | Coarse (green ring) |
| Shank | FG |
| Pack size | Pack of 6 |
| Line | COOL DIAMANT (gold) |
The cylinder round head cuts parallel axial walls and leaves a rounded-shoulder margin in a single pass, which is why this figure is a crown-preparation workhorse, and its COOL DIAMANT cooling grooves reduce heat build-up in use. The 1.2 mm head is a slim size, suited to anterior teeth, narrow interproximal spaces and detail work. The coarse diamond coating is meant for fast, gross reduction; follow with a medium or fine instrument to refine the preparation.
Read the guides: Crown Preparation Burs · Bur Color Coding & ISO Guide · Bur Speed Chart · All COOL DIAMANT burs
Busch Warranty & 60-Day Returns
This Busch instrument is guaranteed against manufacturing and workmanship defects — we'll repair or replace it under normal professional use. Unused, unopened product in its original packaging can also be returned or exchanged within 60 days of delivery. Full terms are on our Warranty page and Returns page.
FAQ
What shank type does the CD 33G 012 FG use?
This bur uses an FG (Friction Grip) shank, compatible with standard high-speed dental handpieces.
How many burs are included in this pack?
Each pack contains 6 individual burs.
What does the green ring indicate?
The green ring color-coding denotes a coarse grit designation, consistent with ISO color-coding standards for diamond rotary instruments.
Where is this bur manufactured?
The cool diamant coarse diamond dental bur is made in Germany by Busch & Co. GmbH.
