US No. 1703 Busch Carbide Tapered Fissure (Cone) Round Bur | Busch No. 33R 018 – Crosscut – HP | Pack of 6
The carbide taper (cone) round cutter dental bur from Busch & Co. GmbH is a precision-engineered rotary instrument designed for reliable, consistent performance across a range of professional applications. Manufactured in Germany, this high-performance carbide cutter features a taper (cone) round geometry that enables controlled material removal and clean, accurate results.
This is a US No. 1703. See all 1 Busch versions — materials, shanks, cuts and packs — on our US No. 1703 page.
Product Details
- Type: Carbide Cutter, Taper (Cone) Round
- Shank: HP (Handpiece)
- Standard Classification: ISO: 500 104 194 007 018
- Pack Size: 6 burs per pack
- Made in Germany
Applications
The carbide taper (cone) round cutter dental bur 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 Carbide Bur?
As a carbide taper (cone) round cutter dental bur, this instrument delivers the cutting efficiency and dimensional consistency that dental technicians and clinicians demand. The carbide construction ensures long-lasting sharpness, while the taper (cone) round profile offers versatility across multiple material types and procedural steps. Each pack contains 6 burs, providing excellent value for high-volume workflows.
Instrument Dimensions
| Head Ø | 1.8 mm (ISO size 018) |
|---|---|
| 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. 33R 018
| Busch figure | 33R |
| US No. | 1703 |
| Shape | Tapered Fissure (Cone) Round |
| ISO size / head diameter | 018 (1.8 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 6 |
| Material | Carbide |
The tapered fissure round head combines convergent sides with a rounded tip, for tapered grooves and contours without a sharp floor. At 1.8 mm the head is a general-purpose size for routine lab shaping and contouring. 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 shank type does this bur use?
This bur is designed for HP (Handpiece) use, making it compatible with standard straight handpiece connections.
How many burs are included in a pack?
Each pack contains 6 burs, offering convenience and value for ongoing laboratory or clinical use.
What is the ISO classification for this instrument?
The standard ISO classification is 500 104 194 007 018.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | H33R.104.018 |
| SS White | 310086 |
| NTI (Kerr Rotary) | HP1703-KC5 |
| Alpen (Coltène) | R601703 |


