Busch Cool-Diamant Cylinder Rounded Edge Bur | Busch No. CD 25 016 – FG | Pack of 6
The cool diamant diamond dental bur CD 25 016 FG from Busch & Co. GmbH is a precision-engineered rotary instrument designed for demanding crown preparation procedures. Featuring a cylinder rounded edge geometry and medium grit diamond coating, this bur delivers controlled, efficient cutting performance in daily clinical practice.
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 Rounded Edge
- Series: Cool Diamant
- Grit: Medium
- Shank: FG (Friction Grip)
- Pack Size: 6 burs per pack
As a genuine cool diamant diamond dental bur, this instrument is built to the exacting standards for which Busch & Co. GmbH is internationally recognised. Each bur is manufactured in Germany, ensuring consistent quality, dimensional accuracy, and reliable clinical outcomes across the full pack.
Ideal Application
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 | 1.6 mm (ISO size 016) |
|---|---|
| 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 25 016
| Busch figure | CD 25 |
| Shape | Cylinder Rounded Edge |
| ISO size / head diameter | 016 (1.6 mm max head Ø) |
| Grit | Medium (blue ring) |
| Shank | FG |
| Pack size | Pack of 6 |
| Line | COOL DIAMANT (gold) |
With its flat end and rounded edge, this cylinder shapes axial walls and defines a shoulder or rounded-shoulder finish line, and its COOL DIAMANT cooling grooves reduce heat build-up in use. The 1.6 mm head is a general-purpose size for routine crown and cavity preparation. 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 handpieces are compatible with this instrument?
It has an FG (friction grip) shank, which fits standard high-speed turbine handpieces.
How many are included per pack?
Each pack contains 6 burs.
Where is this instrument made?
It is manufactured by Busch & Co. in Engelskirchen, Germany, an ISO 13485-certified specialist in rotary precision instruments since 1905.


