Busch Carbide Bud Round Cutter | Busch No. 424X 040 – Crosscut – HP | Pack of 1
The carbide bud round cutter medium double cut from Busch & Co. GmbH is a precision rotary instrument engineered for demanding material removal tasks across multiple professional disciplines. Classified under ISO 500 104 263 190 040, this cutter delivers consistent, controlled cutting performance in applications where accuracy and surface quality are paramount.
Part of our Double Cut Burs: Busch Crosscut Carbide Cutter Collection — browse all 142 shapes, cuts and sizes.
Product Specifications
- Type: Carbide Cutter
- Shape: Bud Round
- Cut: Medium Double Cut
- ISO Classification: 500 104 263 190 040
- Pack Quantity: 1
- Origin: Made in Germany
Key Benefits
The carbide bud round cutter medium double cut geometry provides efficient chip evacuation and a smooth working surface, reducing the risk of clogging during extended use. The medium double cut configuration strikes the optimal balance between aggressive material removal and refined finish quality, making it a versatile tool for precision work.
Applications
The carbide bud round cutter medium double cut 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. |
Why Choose This Cutter?
Manufactured in Germany, each carbide bud round cutter medium double cut reflects Busch & Co. GmbH's longstanding commitment to quality and precision engineering. The carbide construction ensures durability and dimensional stability even under repeated use, making it a reliable choice for professionals who require consistent results in technical and dental laboratory environments.
Instrument Dimensions
| Head Ø | 4.0 mm (ISO size 040) |
|---|---|
| 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.
Specifications: Busch No. 424X 040
| Busch figure | 424X |
| Shape | Bud Round |
| ISO size / head diameter | 040 (4.0 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 1 |
| Material | Carbide |
The bud round head is a full oval with a rounded tip, for contouring concave and lingual denture surfaces without digging in. At 4.0 mm the head is on the larger side, for covering wide acrylic surfaces in fewer passes. As a medium crosscut cutter it does the main shaping work between bulk reduction and finishing.
Read the guides: Dental Laboratory Burs, Polishers & Abrasives · Bur Speed Chart · Dental Bur Glossary · All lab carbide cutters
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 cutter carry?
This cutter is classified under ISO 500 104 263 190 040.
What cut type does this instrument feature?
It features a medium double cut, offering a balance between efficient stock removal and a refined surface finish.
What professional fields is this cutter used in?
It is used in model making, plastics technology, crown and bridge technology, and model casting technique.


