US No. 61 Busch Carbide Straight Fissure (Cylinder) Bur | Busch No. 21 018 – HP | Pack of 6

The carbide cylinder flat dental bur from Busch & Co. GmbH is a precision-engineered rotary cutting instrument designed for controlled material removal across a range of technical and dental applications. Manufactured in Germany, this high-performance carbide cutter delivers consistent, reliable results in demanding professional environments.

Product Details

This carbide cylinder flat dental bur features a cylinder flat geometry optimized for flat-bottomed preparations, shoulder finishing, and precise lateral cutting. Each pack contains 6 burs, ensuring an efficient, ready-to-use supply for busy workflows.

• Type: Carbide Cutter, Cylinder Flat
• Reference: 21 018 (US No. 61)
• Standard Classification: ISO: 500 104 107 006 018
• Pack Quantity: 6 pieces
• Origin: Made in Germany

Applications

The carbide cylinder flat 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

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 Busch Carbide Burs?

Busch & Co. GmbH has a long-standing reputation for German-engineered quality in rotary instruments. The use of high-grade carbide ensures edge retention, dimensional stability, and repeatable cutting performance. This carbide cylinder flat dental bur maintains its geometry under demanding conditions, making it a dependable choice for technicians and clinicians who require accuracy and longevity from their instrumentation.

FAQ

What is the ISO classification for this bur? The ISO classification is 500 104 107 006 018.

How many burs are included per pack? Each pack contains 6 individual burs.

What shank type does this bur use? This bur is an HP (Handpiece) shank type, suitable for straight handpieces.

Where is this product manufactured? This bur is made in Germany by Busch & Co. GmbH.

Compare With

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