US No. 1171 Busch Carbide Tapered Fissure (Cone) Round Bur | Busch No. 23R 012 – RA | Pack of 6

The carbide taper (cone) round fissure dental bur from Busch & Co. GmbH is a precision-engineered rotary instrument designed for reliable cavity and fissure preparation in clinical dental practice. Manufactured in Germany to exacting standards, this bur delivers consistent cutting performance and exceptional durability across a broad range of restorative procedures.

Product Details

This instrument is classified as a Carbide, Taper (Cone) Round, Excavating and Fissure Bur, conforming to ISO standard classification ISO: 500 204 194 006 012. The US equivalent designation is No. 1171, and the product reference is 23R 012. Each pack contains 6 burs, ensuring consistent availability throughout demanding clinical sessions. The RA (Right Angle/Latch-type) shank makes this bur directly compatible with standard slow-speed and contra-angle handpieces.

As a carbide taper (cone) round fissure dental bur, this instrument is optimized for controlled material removal in enamel and dentin. The taper (cone) round geometry facilitates precise access to occlusal fissures and interproximal areas, enabling clinicians to work efficiently while maintaining sound tissue conservation principles. Its carbide construction ensures long-lasting sharpness and sustained resistance to wear under routine clinical loads.

Applications

The carbide taper (cone) round fissure dental bur is suitable for use in standard high-speed handpieces as well as RA slow-speed handpieces, offering versatile integration into existing clinical workflows. German manufacturing ensures each bur meets rigorous quality benchmarks session after session.

The carbide taper (cone) round fissure 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.
	Excavation — Removal of carious dentin and existing restorative material with controlled depth.

Instrument Dimensions

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.

FAQ

What shank type does this bur use? This bur features an RA (Right Angle/Latch-type) shank, compatible with standard slow-speed and contra-angle handpieces.

How many burs are included per pack? Each pack contains 6 individual carbide taper (cone) round fissure dental burs.

What is the ISO classification? The ISO classification is 500 204 194 006 012, corresponding to US No. 1171.

What procedures is this bur best suited for? This bur excels in occlusal fissure preparation, caries excavation, and restorative access cavity preparation in operative dentistry workflows.

Compare With

Manufacturer literature: Busch catalogs and product brochures for this line are available in our Busch Burs Catalog Library.