US No. 1561 Busch Carbide Straight Fissure (Cylinder) Round Bur | Busch No. 31R 018 – Crosscut – HP | Pack of 6
The carbide cylinder round dental bur from Busch & Co. GmbH is a precision-engineered rotary cutting instrument designed for demanding applications across multiple disciplines. Manufactured in Germany to exacting standards, this cutter delivers consistent, reliable performance in professional and technical environments.
Product Specifications
This instrument is classified as a Carbide Cutter, Cylinder Round, conforming to ISO standard 500 104 137 007 018 (US No. 1561). It is supplied as a convenient pack of 6, ensuring continuity of work without interruption. The HP (Handpiece) shank type makes it compatible with standard straight handpiece connections.
Applications
The carbide cylinder round dental bur is well-suited for the following dental laboratory applications:
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Crown and Bridge Technology — Shaping, trimming and finishing of crown and bridge frameworks in the laboratory. |
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Plastics Technology — Shaping, trimming and finishing of acrylic dentures and appliances. |
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Model Making — Trimming and detailing of plaster and stone models. |
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Model Casting Technique — Finishing and adjustment of cast metal frameworks. |
Instrument Dimensions
| Head Ø | 1.8 mm (ISO size 018) |
|---|---|
| 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.
Why Choose This Carbide Cylinder Round Dental Bur
As a carbide cylinder round dental bur produced in Germany, this instrument reflects Busch's long-standing expertise in rotary cutting tool manufacturing. The tungsten carbide construction provides excellent hardness and wear resistance, resulting in longer tool life and consistent cutting geometry throughout use. Each bur in the pack maintains the same high quality, ensuring predictable outcomes across every application.
Busch Warranty & 90-Day Returns
This Busch instrument is guaranteed against manufacturing and workmanship defects — we'll repair or replace it under normal professional use. Unused product in original packaging can also be returned or exchanged within 90 days of your invoice date. Full terms are on our Warranty page.
FAQ
What shank type does this bur use? This bur features an HP (Handpiece) shank, compatible with standard straight handpiece connections.
How many burs are included per pack? Each pack contains 6 individual burs for uninterrupted workflow.
What is the ISO classification for this instrument? The ISO classification is 500 104 137 007 018, corresponding to US No. 1561.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | H31R.104.018 |
Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.
Specifications: Busch No. 31R 018
| Busch figure | 31R |
| US No. | 1561 |
| Shape | Straight Fissure (Cylinder) Round |
| ISO size / head diameter | 018 (1.8 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 | Tungsten 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 crosscut pattern gives fast, cool material removal; follow with a fine cut for the final surface. A 1.8 mm head gives enough edge for shaping while still following tooth-sized contours.
Read the guides: Dental Laboratory Burs, Polishers & Abrasives · Bur Speed Chart · Dental Bur Glossary · All lab carbide cutters
This is a US No. 1561. See all 1 Busch versions — materials, shanks, cuts and packs — on our US No. 1561 page.
US No. 1561 Busch Carbide Straight Fissure (Cylinder) Round Bur | B...
