Busch Shorties Carbide Round Bur | Busch No. S 421FX 014 – HP | Pack of 2
The carbide cutter round fine double cut shortie from Busch & Co. GmbH is a precision rotary instrument engineered for demanding applications in dental practices and dental laboratories. Classified under ISO 500 104 001 140 014, this shortie-format cutter delivers controlled, efficient material removal in tight or restricted access areas where standard-length instruments cannot reach effectively.
Part of our Double Cut Burs: Busch Crosscut Carbide Cutter Collection — browse all 142 shapes, cuts and sizes.
Key Features
- Shape: Round
- Cut Type: Fine Double Cut
- Format: Shortie (reduced shank length for enhanced control)
- Material: Solid Carbide
- ISO Classification: 500 104 001 140 014
- Pack Quantity: 2 per pack
The carbide cutter round fine double cut shortie geometry produces a smooth cutting action with minimal chatter, making it ideal for fine finishing, shaping, and contouring tasks. The fine double cut pattern removes material efficiently while leaving a refined surface, reducing secondary finishing steps.
Applications
The carbide cutter round fine double cut shortie 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. |
As a genuine carbide cutter round fine double cut shortie, this instrument exemplifies the precision manufacturing heritage of Busch & Co. GmbH. Produced in Germany to exacting tolerances, each unit in this two-pack offers consistent performance and long service life.
Instrument Dimensions
| Head Ø | 1.4 mm (ISO size 014) |
|---|---|
| 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 does the shortie format offer over standard-length cutters?
The reduced shank length provides greater rigidity and improved access in confined spaces, resulting in more controlled cutting with less vibration.
Is the carbide cutter round fine double cut shortie sold in a pack?
Yes, this listing includes a pack of 2 units, offering convenience and value for professional use.
Which materials is this cutter suited for?
It is well suited for plastics, dental restoration materials, cast models, and similar technical substrates commonly encountered in the listed application fields.
