Busch Carbide Round Cutter | Busch No. 421 050 – HP | Pack of 1
The round carbide cutter medium cut from Busch & Co. GmbH is a precision rotary tool engineered for controlled, consistent material removal across a range of technical applications. Designed with a round geometry and medium cut profile, this cutter delivers reliable performance where accuracy and surface quality matter most.
Product Details
- Type: Carbide Cutter, Round
- Cut: Medium Cut
- Standard Classification: ISO 500 104 001 175 050
- Pack Contents: 1 piece
- Item Reference: 421 050 HP
Applications
The round carbide cutter medium cut is well-suited for the following dental laboratory applications:
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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. |
Instrument Dimensions
| Head Ø | 5.0 mm (ISO size 050) |
|---|---|
| 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 Cutter?
Manufactured in Germany to exacting standards, this round carbide cutter medium cut reflects the quality and craftsmanship that Busch & Co. GmbH is known for. The carbide construction provides extended tool life and resistance to wear, making it a dependable choice for professionals who require consistent cutting performance over repeated use. The round form factor allows access to concave surfaces and cavities that other cutter geometries cannot easily reach.
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 materials can this cutter be used on? This tool is designed for use in model making and plastics technology, making it suitable for a range of non-metallic and soft materials typical in those fields.
What shank type does this cutter accept? The HP designation indicates a straight HP (handpiece) shank, compatible with standard HP rotary handpieces.
Is this the round carbide cutter medium cut available individually? Yes, this product is supplied as a pack of 1 unit.
Where is this product manufactured? This cutter is Made in Germany by Busch & Co. GmbH.
Specifications: Busch No. 421 050
| Busch figure | 421 |
| Shape | Round |
| ISO size / head diameter | 050 (5.0 mm max head Ø) |
| Cut type / toothing | Medium Cut |
| Shank | HP |
| Lab applications (per Busch) | 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 5.0 mm head is a bulk-reduction size: it covers a denture base quickly and is not meant for detail. The medium cut gives a controlled cutting action with a cleaner track than a coarse toothing.
Read the guides: Dental Laboratory Burs, Polishers & Abrasives · Bur Speed Chart · Dental Bur Glossary · All lab carbide cutters
Busch Carbide Round Cutter | Busch No. 421 050 – HP | Pack of 1
