US No. 171L Busch Carbide Tapered Fissure (Cone) Long Bur | Busch No. 23L 012 – HP | Pack of 6
The carbide taper (cone) flat cutter dental bur by Busch & Co. GmbH is a precision-engineered rotary instrument designed for demanding material removal and shaping tasks across a range of professional applications. Classified under ISO standard 500 104 171 006 012 (US No. 171L), this long-shank HP carbide cutter delivers consistent, controlled cutting performance in laboratory and clinical settings.
Product Details
This instrument features a taper (cone) flat (tapered fissure (cone) long) geometry, a carbide construction known for its hardness and wear resistance. The HP (handpiece) shank configuration ensures compatibility with standard laboratory handpieces. Each pack contains 6 burs, providing excellent value for high-volume workflows.
- Type: Carbide Cutter, Taper (Cone) Flat
- Designation: 23L 012 / US No. 171L
- ISO Classification: 500 104 171 006 012
- Shank: HP (Handpiece)
- Pack Quantity: 6 pieces
- Origin: Made in Germany
Applications
The carbide taper (cone) flat cutter dental bur is suited for the following professional disciplines:
Whether you are trimming plaster models, shaping thermoplastics, or refining crown and bridge restorations, this carbide taper (cone) flat cutter dental bur offers the cutting precision and longevity that professionals require. Manufactured in Germany by Busch & Co. GmbH, each bur meets exacting quality standards expected in modern dental laboratory environments.
The carbide taper (cone) flat cutter dental bur 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 | 1.2 mm (ISO size 012) |
|---|---|
| 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 & 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 ISO classification does this bur correspond to? This bur is classified under ISO 500 104 171 006 012, also known as US No. 171L.
How many burs are included per pack? Each pack contains 6 carbide taper (cone) flat cutter dental burs.
What shank type does this instrument use? It uses an HP (handpiece) shank, compatible with standard laboratory handpieces.
Where is this product manufactured? This instrument is Made in Germany by Busch & Co. GmbH.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | H23L.104.012 |
| Brasseler USA | H23L.11.012 |
| Edenta | C23L.104.012 |
Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.
Specifications: Busch No. 23L 012
| Busch figure | 23L |
| US No. | 171L |
| Shape | Tapered Fissure (Cone) Long |
| ISO size / head diameter | 012 (1.2 mm max head Ø) |
| 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 long tapered fissure head reaches further than the standard figure while still cutting convergent walls and tapered grooves. At 1.2 mm the head is small, suited to interdental areas, clasp spaces and fine detail rather than bulk work.
Read the guides: Dental Laboratory Burs, Polishers & Abrasives · Bur Speed Chart · Dental Bur Glossary · All lab carbide cutters
This is a US No. 171. See all 4 Busch versions — materials, shanks, cuts and packs — on our US No. 171 page.
US No. 171L Busch Carbide Tapered Fissure (Cone) Long Bur | Busch N...
