US No. 7 Busch Carbide Round Bur | Busch No. 1 021 – HP | Pack of 6
The carbide round rosehead dental bur from Busch & Co. GmbH is a precision-engineered rotary instrument designed for consistent, controlled material removal across a range of professional applications. Manufactured in Germany to exacting standards, this bur delivers the reliable cutting performance and dimensional accuracy that demanding workflows require.
Product Details
- Material: Carbide
- Shape: Round, Rosehead
- Size: 1 021 (US No. 7)
- Standard Classification: ISO 500 104 001 001 021
- Pack Quantity: 6 burs per pack
Applications
The carbide round rosehead 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 | 2.1 mm (ISO size 021) |
|---|---|
| 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 Bur
As a carbide round rosehead dental bur, this instrument combines the hardness of carbide construction with the versatile rosehead profile, enabling smooth, efficient cutting with minimal chatter. Each pack contains six burs, ensuring continuity of work without frequent interruption. Busch & Co. GmbH instruments are Made in Germany, reflecting a longstanding commitment to engineering quality and manufacturing precision.
Whether you are working in a dental laboratory, a model-making environment, or a plastics technology setting, the carbide round rosehead dental bur provides the consistency and durability required for professional-grade results.
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 handpieces are compatible with this instrument? It has an HP (2.35 mm straight) shank, which fits standard laboratory and slow-speed straight 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.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | H1.104.021 |
| Brasseler USA | H1.11.021 |
| Meisinger | HM1-021-HP |
| SS White | 310053 |
| Alpen (Coltène) | R600007 |
| Edenta | C1.104.021 |
Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.
Specifications: Busch No. 1 021
| Busch figure | 1 |
| US No. | 7 |
| Shape | Round |
| ISO size / head diameter | 021 (2.1 mm max head Ø) |
| Shank | HP (2.35 mm) |
| Lab applications (per Busch) | Crown and Bridge Technology, Model Casting Technique, Model Making, Plastics Technology |
| Pack size | Pack of 6 |
| Material | Carbide |
The round head cuts in every direction, which makes it the shape for opening, hollowing and relieving acrylic, plaster and model surfaces rather than for flat work. A 2.1 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. 7. See all 10 Busch versions — materials, shanks, cuts and packs — on our US No. 7 page.
US No. 7 Busch Carbide Round Bur | Busch No. 1 021 – HP | Pack of 6
