US No. 3SXM Busch Carbide Round Bur | Busch No. 1SXM 012 – SXM-Cut – RA-L | Pack of 2
The round carbide dental bur 1SXM 012 (US No. 3SXM) from Busch & Co. GmbH is a precision-engineered rotary instrument designed for demanding clinical applications. Featuring a rosehead, fast-cutting carbide design with low vibration, this instrument delivers controlled, efficient material removal with minimal discomfort to the patient.
This is a US No. 3. See all 11 Busch versions — materials, shanks, cuts and packs — on our US No. 3 page.
Key Features
- Material: Carbide construction for long-lasting sharpness and durability
- Shape: Round rosehead geometry optimized for precise preparation
- Cutting Action: Fast cutting with low vibration for enhanced clinical comfort
- Neck Design: Slender neck with gold-plated finish and green ring identification band
- Pack Contents: Supplied as a pack of 2
Standard Classification
This round carbide dental bur is classified under ISO standard: 500 205 001 019 012, ensuring compatibility and traceability across clinical and laboratory settings.
Applications
The slender neck and rosehead geometry of this round carbide dental bur make it particularly well-suited for the following procedure:
Its fast-cutting carbide formulation allows the clinician to work efficiently while the low-vibration characteristic helps maintain accuracy throughout the preparation.
The round carbide dental bur is well-suited for the following clinical procedures:
| Cavity/Fissure Preparation — Opening, extending and shaping cavities and fissures with controlled removal of enamel and dentin. |
Instrument Dimensions
| Head Ø | 1.2 mm (ISO size 012) |
|---|---|
| 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 this bur use?
This bur is identified as RA-L (Right Angle Long shank), suitable for low-speed contra-angle handpieces.
How many burs are included per pack?
Each pack contains 2 burs.
Is this a genuine German-made instrument?
Yes, this round carbide dental bur is manufactured in Germany by Busch & Co. GmbH, a long-established name in precision dental instruments.
What is the ISO classification for this bur?
The ISO classification is 500 205 001 019 012.


