Busch Cool-Diamant Cylinder Round Bur | Busch No. CD 33G 014 – Coarse Grit – FG | Pack of 6
The CD 33G 014 FG Cool-Diamant is a professional-grade coarse diamond dental bur crown preparation instrument engineered by Busch & Co. GmbH for demanding restorative workflows. Designed to deliver controlled, consistent material removal, this bur is the trusted choice for clinicians who require reliable cutting performance in high-speed handpiece applications.
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
Configured in a cylinder round geometry, the Cool-Diamant Coarse is purpose-built for axial wall preparation and precise crown work. The coarse grit diamond coating ensures rapid, efficient stock removal, making it an ideal solution for the initial stages of crown preparation. The green ring colour-coding allows for immediate chairside identification, reducing the risk of bur selection errors during procedures.
Key Features
- Shape: Cylinder Round — optimised for axial wall preparation and crown work
- Grit: Coarse — identified by a green ring for rapid chairside selection
- Shank: Friction Grip (FG), compatible with standard high-speed handpieces
- Diamond Coating: Consistent diamond particle distribution for reliable cutting performance throughout the bur's service life
- Pack Size: Supplied as a convenient pack of 6 burs
Clinical Application
This coarse diamond dental bur crown preparation tool is specifically suited for the reduction phase of full-crown and partial-crown preparation, where efficient bulk material removal is paramount. The cylinder round form factor supports parallel wall creation and consistent margin definition, contributing to accurate impressions and well-fitting restorations.
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 | 1.4 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.
Specifications: Busch No. CD 33G 014
| Busch figure | CD 33G |
| Shape | Cylinder Round |
| ISO size / head diameter | 014 (1.4 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 1.4 mm head is a general-purpose size for routine crown and cavity preparation. Being coarse, it is a bulk-reduction instrument rather than a finishing one.
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 handpiece is compatible with the CD 33G 014 FG?
This bur features a Friction Grip (FG) shank, making it compatible with standard high-speed dental handpieces used in clinical practice.
How is the grit level identified on this bur?
The coarse grit is indicated by a green colour-coded ring on the shank, in line with standard ISO colour-coding conventions for diamond burs.
How many burs are included per pack?
Each pack contains 6 individual coarse diamond dental bur crown preparation burs, providing excellent value for busy dental practices.
