US No. 1/4 Busch Carbide Round Bur | Busch No. 1 005 – HP | Pack of 6
The round carbide dental bur pack from Busch & Co. GmbH is a precision-engineered rotary instrument designed for demanding applications across multiple dental and technical disciplines. Each pack contains 6 individually crafted burs featuring a Rosehead, Round, Carbide construction — delivering consistent cutting performance and long-lasting durability in every use.
Product Specification
- Shape: Round (Rosehead)
- Material: Carbide
- Standard Classification: ISO 500 104 001 001 005
- US No.: 1/4
- Pack Quantity: 6 burs per pack
- Origin: Made in Germany
Applications
The round carbide dental bur pack 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. |
Instrument Dimensions
| Head Ø | 0.5 mm (ISO size 005) |
|---|---|
| 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 Busch Carbide Burs?
Manufactured in Germany to exacting standards, this round carbide dental bur pack reflects the quality and precision that Busch & Co. GmbH has built its reputation on. Carbide construction ensures superior hardness and edge retention compared to conventional steel burs, making each pack an efficient, long-term investment for dental laboratories and technical professionals alike.
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 is the ISO classification for this bur? The ISO standard classification is 500 104 001 001 005.
How many burs are included per pack? Each pack contains 6 burs.
What shank type does this bur use? This bur is designed for HP (Handpiece) shank compatibility, US No. 1/4.
Is this round carbide dental bur pack suitable for dental laboratory use? Yes, it is well-suited for dental laboratory workflows including crown and bridge technology, model casting, and model making.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | H1.104.005 |
| Brasseler USA | H1.11.005 |
| Meisinger | HM1-005-HP |
| SS White | 310045 |
| Alpen (Coltène) | R6001/4 |
| Edenta | C1.104.005 |
Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.
Specifications: Busch No. 1 005
| Busch figure | 1 |
| US No. | 1/4 |
| Shape | Round |
| ISO size / head diameter | 005 (0.5 mm max head Ø) |
| Shank | HP |
| 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. The 0.5 mm head is a small size for confined spaces and detail work.
Read the guides: Dental Laboratory Burs, Polishers & Abrasives · Bur Speed Chart · Dental Bur Glossary · All lab carbide cutters
This is a US No. 1/4. See all 3 Busch versions — materials, shanks, cuts and packs — on our US No. 1/4 page.

