US No. 170L Busch Carbide Tapered Fissure (Cone) Long Bur | Busch No. 23L 010 – HP | Pack of 6
The carbide taper (cone) flat cutter dental bur from Busch & Co. GmbH is a precision-engineered rotary instrument designed for demanding applications across dental and technical disciplines. Manufactured in Germany, this cutter delivers consistent, controlled material removal with the reliability that defines Busch craftsmanship.
Product Details
This instrument is classified as a Carbide Cutter, Taper (Cone) Flat, referenced under ISO: 500 104 171 006 010 (US No. 170L). It is offered in a convenient Pack of 6, ensuring a ready supply for busy practitioners and technicians. The long shank (HP) configuration provides extended reach for deep or complex geometries where standard-length burs may fall short.
Applications
The carbide taper (cone) flat 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. |
Instrument Dimensions
| Head Ø | 1.0 mm (ISO size 010) |
|---|---|
| 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 a Carbide Taper (Cone) Flat Cutter Dental Bur
As a carbide taper (cone) flat cutter dental bur, this instrument combines the hardness of tungsten carbide with a taper (cone) flat geometry that is well suited to accessing angled surfaces and achieving flat-bottomed reductions. The result is improved accuracy and a longer working life compared to standard steel alternatives. The carbide taper (cone) flat cutter dental bur is an essential tool where precision and durability are non-negotiable.

FAQ
What shank type does this bur use? This bur features an HP (handpiece) shank, compatible with standard straight handpieces used in dental and laboratory settings.
How many burs are included? Each order contains a pack of 6 individual carbide taper (cone) flat cutter dental burs.
What is the ISO classification? The ISO classification for this instrument is 500 104 171 006 010.
Compare With
| Manufacturer | Reference |
|---|---|
| Komet (Gebr. Brasseler) | H23L.104.010 |
| Brasseler USA | H23L.11.010 |
| Meisinger | HM23L-010-HP |
Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.

