Busch Cool-Diamant Cylinder Round Bur | Busch No. CD 33 012 – FG | Pack of 6
The diamond dental bur for crown preparation from Busch & Co. GmbH, model CD 33 012 FG, is a precision-engineered rotary instrument designed to meet the rigorous demands of modern restorative dentistry. Part of the Cool Diamant series, it is built to support cooler cutting conditions, helping to manage heat generation during preparation and contributing to patient comfort while preserving tooth structure integrity.
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
The CD 33 012 FG features a cylinder round shape with a medium grit diamond coating, delivering controlled and efficient cutting performance. Its FG (Friction Grip) shank ensures secure, stable seating in standard high-speed handpieces. Supplied in a convenient pack of 6, this diamond dental bur for crown preparation is a practical, cost-effective choice for busy dental practices that require consistent results across multiple clinical sessions.
Key Features
- Shape: Cylinder Round
- Grit: Medium
- Shank: FG (Friction Grip)
- Primary Use: Crown Preparation
- Pack Quantity: 6 burs per pack
- Origin: Made in Germany
Why Choose the Cool Diamant Series?
When precision and thermal management are critical, the diamond dental bur for crown preparation from the Busch & Co. Cool Diamant range delivers a dependable clinical solution. The medium grit diamond coating facilitates efficient material removal while maintaining control over preparation margins — an essential requirement in crown work where dimensional accuracy directly affects restoration outcomes. The Made in Germany standard reflects consistent manufacturing quality that practitioners can rely on procedure after procedure.
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).
Podiatry Use
Busch's podiatry catalogue lists the CD 33 012, a cylinder round Cool-Diamant bur with a fine 1.2 mm head, for smoothing callus and nails in tight areas. The medium grit and peripheral cooling grooves are made for FG turbine units with water cooling. See nail-edge and fine-work burs and diamond podiatry burs.
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 33 012
| Busch figure | CD 33 |
| Shape | Cylinder Round |
| ISO size / head diameter | 012 (1.2 mm max head Ø) |
| Grit | Medium (blue 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; the gold COOL DIAMANT head carries cooling grooves that keep heat down while cutting. At 1.2 mm the head is narrow, which favours anterior preparations and confined spaces. As a medium-grit instrument it carries the main part of the preparation once bulk reduction is done.
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 33 012 FG use?
This bur uses an FG (Friction Grip) shank, compatible with standard high-speed dental handpieces.
How many burs are included in the pack?
Each pack contains 6 burs, providing consistent performance across multiple procedures.
What is the grit level of this bur?
The CD 33 012 FG features a medium grit diamond coating, suitable for controlled crown preparation cutting.
Is this a single-use or multi-use bur?
Usage protocols for any diamond dental bur for crown preparation should follow the manufacturer's guidelines and your practice's infection control policy.
Can the CD 33 012 be used in podiatry?
Yes. Busch includes the CD 33 012 in its podiatry range for callus and nail smoothing. It is an FG (friction grip) bur, for podiatry turbines with cooling water.
