US No. 1559 Busch Carbide Straight Fissure (Cylinder) Round Bur | Busch No. 31R 014 – Crosscut – HP | Pack of 6
This is a US No. 1559. See all 2 Busch versions — materials, shanks, cuts and packs — on our US No. 1559 page.
The carbide cylinder round dental bur from Busch & Co. GmbH is a precision-engineered cutting instrument designed for demanding dental and technical applications. Manufactured in Germany, this bur delivers consistent performance and reliable material removal across a broad range of substrates.
Product Classification
This carbide cylinder round dental bur is classified under ISO standard 500 104 137 007 014, ensuring compatibility and traceability within professional workflows. The cutter features a cylinder round geometry with a crosscut (CROSSCUT) carbide design, optimized for smooth, controlled cutting action.
Applications
The carbide cylinder round dental bur is well-suited for the following dental laboratory applications:
| Crown and Bridge Technology — Shaping, trimming and finishing of crown and bridge frameworks in the laboratory. | |
| Plastics Technology — Shaping, trimming and finishing of acrylic dentures and appliances. | |
| Model Making — Trimming and detailing of plaster and stone models. | |
| Model Casting Technique — Finishing and adjustment of cast metal frameworks. |
Key Features
- Carbide construction for extended tool life and durability
- Cylinder round profile for uniform cutting geometry
- Crosscut flute design for enhanced chip clearance and reduced heat buildup
- HP (handpiece) shank for compatibility with standard laboratory and clinical handpieces
- Made in Germany — engineered to stringent quality standards
- Supplied as a convenient pack of 6
Whether used in a clinical or laboratory environment, the carbide cylinder round dental bur provides the precision and consistency that dental professionals expect from a German-made instrument. This carbide cylinder round dental bur is an essential tool for technicians and clinicians who demand reliable, repeatable cutting performance.
Instrument Dimensions
| Head Ø | 1.4 mm (ISO size 014) |
|---|---|
| Shank | HP (Straight Handpiece) — 2.35 mm Ø, 44.5 mm overall length (ISO 104) |
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.
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 ISO classification does this bur carry? This bur is classified under ISO 500 104 137 007 014.
How many burs are included per pack? Each pack contains 6 individual burs.
What shank type does this bur use? It features an HP (handpiece) shank, suitable for standard laboratory and clinical handpieces.
Where is this bur manufactured? This bur is made in Germany by Busch & Co. GmbH.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | H31R.104.014 |
| Edenta | C31R.104.014 |
Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.
Specifications: Busch No. 31R 014
| Busch figure | 31R |
| US No. | 1559 |
| Shape | Straight Fissure (Cylinder) Round |
| ISO size / head diameter | 014 (1.4 mm max head Ø) |
| Cut type / toothing | Crosscut |
| Shank | HP |
| Lab applications (per Busch) | Crown and Bridge Technology, Model Casting Technique, Model Making, Plastics Technology |
| Pack size | Pack of 6 |
| Material | Carbide |
With parallel sides and a domed end, the straight fissure round head cuts straight walls while leaving a rounded floor, which is kinder to the material than a sharp internal corner. The 1.4 mm head is a mid-size that handles general contouring of dentures, frameworks and models. The crosscut pattern gives fast, cool material removal; follow with a fine cut for the final surface.
Read the guides: Dental Laboratory Burs, Polishers & Abrasives · Bur Speed Chart · Dental Bur Glossary · All lab carbide cutters


