US No. 558L Busch Carbide Straight Fissure (Cylinder) Long Bur | Busch No. 31L 012 – Crosscut – HP | Pack of 6

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

Product Details

This instrument is classified as a Carbide Cutter, Cylinder Flat type, conforming to the following standard classification: ISO: 500 104 110 007 012. The HP (handpiece) shank configuration and long carbide cylinder flat geometry make this carbide cylinder flat cutter dental bur a versatile choice for technicians who require reliable performance in precision work environments. Each pack contains 6 burs.

Applications

The carbide cylinder 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

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 This Bur?

As a genuine carbide cylinder flat cutter dental bur made in Germany, this instrument reflects Busch's long-standing commitment to quality, precision, and engineering excellence. The carbide construction ensures lasting sharpness and durability under repeated use, making it a dependable choice for laboratory and clinical professionals alike.

Whether you are working in dental technology, model making, or plastics fabrication, this carbide cylinder flat cutter dental bur offers the performance and consistency required for exacting work. Supplied in a convenient pack of 6 for uninterrupted workflow.

FAQ

What handpieces are compatible with this instrument? It has an HP (2.35 mm straight) shank, which fits standard laboratory and slow-speed straight handpieces.

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

Where is this instrument made? It is manufactured by Busch & Co. in Engelskirchen, Germany, an ISO 13485-certified specialist in rotary precision instruments since 1905.

Compare With

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