Busch Carbide Round Cutter | Busch No. 421X 060 – Crosscut – HP | Pack of 1
Part of our Double Cut Burs: Busch Crosscut Carbide Cutter Collection — browse all 142 shapes, cuts and sizes.
The carbide cutter round fine double cut from Busch & Co. GmbH is a precision rotary tool engineered for demanding material removal and finishing tasks across multiple professional disciplines. Classified under ISO standard 500 104 001 190 060, this instrument delivers consistent, controlled cutting action in a compact round profile.
Product Overview
This carbide cutter round fine double cut features a fine double-cut tooth geometry that reduces vibration and chatter while enabling smooth, efficient stock removal. The round head profile allows access to contoured surfaces and recessed areas where flat or cylindrical tools cannot reach effectively. As a carbide instrument, it offers superior hardness and wear resistance compared to high-speed steel alternatives, maintaining its cutting edge through extended use.
Applications
The carbide cutter 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. |
Key Features
- Round head geometry for versatile contouring
- Fine double-cut pattern for smooth surface finish
- Solid carbide construction for long tool life
- ISO classification: 500 104 001 190 060
- Made in Germany to exacting quality standards
- Supplied as a pack of 1
Whether in a dental laboratory, plastics workshop, or model-making studio, the carbide cutter round fine double cut provides the reliability and precision that professionals demand. Manufactured by Busch & Co. GmbH in Germany, this tool reflects decades of engineering expertise in rotary cutting instruments.
Instrument Dimensions
| Head Ø | 6.0 mm (ISO size 060) |
|---|---|
| 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.
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 carbide cutter carry? This tool is classified under ISO 500 104 001 190 060.
Is the carbide cutter round fine double cut suitable for dental laboratory use? Yes, it is specifically listed for Crown and Bridge Technology and Model Casting Technique applications.
How is this product supplied? It is supplied as a pack of 1.
Specifications: Busch No. 421X 060
| Busch figure | 421X |
| Shape | Round |
| ISO size / head diameter | 060 (6.0 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 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 6.0 mm head is built for rapid, even reduction of large surfaces. 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
