Busch Carbide Bone Taper (Cone) Pointed Cutter | Busch No. 166A 021 – RA-L | Pack of 2
Busch No. 166A 021 – RA-L puts the 2.1 mm (ISO 021) A-Cut, low-vibration carbide taper (cone) pointed bone-cutter head on a long latch-type shank. That extra length is the sole difference from the 166A 021 RA: it extends the reach of a slow-speed contra-angle handpiece into deeper surgical fields. Pack of 2, made in Germany by Busch & Co. GmbH.
Why choose the RA-L version
A long RA shank is typically the answer when a standard bur cannot reach a posterior or deep site without the handpiece head obstructing access or vision — for example around impacted third molars or in deep osteotomy cuts. With the 2.1 mm head it supports efficient bone removal at those sites while running in your existing latch contra-angle at low speed.
Also available: No. 166 021 – RA, No. 166A 021 – HP, No. 166A 021 – RA, No. 166 021 – RA-L.
Product Specifications
- Type: Carbide Bone Cutter
- Shape: Taper (Cone) Pointed
- Cut Style: A-Cut
- Performance: Low Vibration
- ISO Classification: 500 205 409 298 021
- Pack Quantity: Pack of 2
Key Features
As a high-performance carbide bone cutter dental bur, the 166A 021 RA-L is engineered to provide smooth, precise cutting action with minimal chatter. The taper (cone)-pointed tip enables accurate access and controlled bone removal, while the A-Cut geometry optimizes chip clearance and reduces heat generation during use. Low vibration characteristics contribute to improved tactile feedback and patient comfort.
Applications
The carbide bone cutter dental bur is well-suited for the following clinical procedures:
 |
Oral Surgery — Cutting and shaping of bone in oral and maxillofacial surgical procedures. |
German Engineering Excellence
Manufactured to rigorous German production standards, this instrument reflects Busch & Co. GmbH's long-standing commitment to quality and clinical reliability. Every carbide bone cutter dental bur in this range is produced with consistent dimensional accuracy to support predictable clinical outcomes.
Instrument Dimensions
| Head Ø | 2.1 mm (ISO size 021) |
|---|---|
| Shank | RA / CA (Contra-Angle, latch) — 2.35 mm Ø, 22 mm overall length (ISO 204) |
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 shank type does the 166A 021 RA-L use?
The RA-L designation indicates a latch-type right-angle shank, compatible with standard contra-angle handpieces.
How many burs are included?
This listing is supplied as a pack of 2 burs.
What is the ISO classification for this bur?
The ISO classification is 500 205 409 298 021.
