Busch Carbide Bud Round Cutter | Busch No. 424FX 040 – Fine Crosscut – HP | Pack of 1
The carbide cutter bud round fine double cut from Busch & Co. GmbH is a precision-engineered rotary cutting instrument designed for demanding professional applications. Featuring a bud round geometry with a fine double cut pattern and an identifiable red ring designation, this bur delivers controlled material removal with a refined surface finish.
Product Specifications
- Type: Carbide Cutter
- Shape: Bud Round
- Cut: Fine Double Cut
- Identification: Red Ring
- ISO Classification: 500 104 263 140 040
- Pack Size: 1 unit
Applications
The carbide cutter bud round fine double cut 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 | 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.
Why Choose This Carbide Cutter
Manufactured in Germany, this carbide cutter bud round fine double cut exemplifies the high standards associated with Busch & Co. GmbH tooling. The fine double cut configuration produces a smooth cutting action, reducing vibration and material stress while maintaining consistent results across repeated use. Professionals working in dental laboratories, model workshops, and technical production environments will appreciate the precision and reliability this instrument provides.
Selecting the correct carbide cutter bud round fine double cut for your specific application ensures optimal performance, longer tool life, and superior surface quality on finished workpieces.
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 1 cutter.
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.
Specifications: Busch No. 424FX 040
| Busch figure | 424FX |
| Shape | Bud Round |
| ISO size / head diameter | 040 (4.0 mm max head Ø) |
| Cut type / toothing | Fine Crosscut |
| Shank | HP (2.35 mm) |
| 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. Fine crosscut teeth trade removal speed for surface quality: use it after shaping, as the last cutting step before polishers. The 4.0 mm head is a large size for fast reduction of denture bases and broad framework surfaces.
Read the guides: Dental Laboratory Burs, Polishers & Abrasives · Bur Speed Chart · Dental Bur Glossary · All lab carbide cutters
Part of our Double Cut Burs: Busch Crosscut Carbide Cutter Collection — browse all 142 shapes, cuts and sizes.
Busch Carbide Bud Round Cutter | Busch No. 424FX 040 – Fine Crosscu...
