Busch & Co. GmbH  |  SKU: 030461

Busch Diamond Cylinder Flat Bur | Busch No. 842 021 – Medium Grit – HP | Pack of 2

Regular price $27.99
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The cylinder flat medium grit diamond dental bur from Busch & Co. GmbH is a precision-engineered rotary instrument designed to meet the exacting demands of modern dental practice. Manufactured in Germany to consistently high standards, this diamond bur delivers reliable performance across a range of clinical and laboratory applications.

ShapeCylinder Flat
GritMedium
PackPack of 2
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Product details

Product Details

  • Shape: Cylinder Flat
  • Grit: Medium
  • ISO Classification: 806 104 113 524 021
  • Pack Contents: 2 burs
  • Reference: Busch Diamond Cylinder Flat Bur | Busch No. 842 021 – HP

Applications

The cylinder flat medium grit diamond dental bur is well suited for Crown and Bridge Technology, offering controlled material removal and a consistent working surface. The flat-end cylinder geometry allows clinicians and dental technicians to work efficiently on flat surfaces and defined margins, making it a versatile choice for preparation and finishing tasks.

The cylinder flat medium grit diamond dental bur is well-suited for the following dental laboratory applications:

Crown and Bridge Technology Crown and Bridge Technology — Shaping, trimming and finishing of crown and bridge frameworks in the laboratory.

German Engineering Quality

As a product of Busch & Co. GmbH, this cylinder flat medium grit diamond dental bur reflects the craftsmanship and quality standards associated with German dental instrument manufacturing. Each bur is produced to support accuracy, longevity, and consistent clinical outcomes.

Instrument Dimensions

Head Ø2.1 mm (ISO size 021)
ShankHP (Straight Handpiece) — 2.35 mm Ø, 44.5 mm overall length (ISO 104)

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.

Warranty & returns

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 is the ISO classification for this bur?

The ISO standard classification for this instrument is 806 104 113 524 021.

How many burs are included in a pack?

Each pack contains 2 burs.

What procedures is this cylinder flat medium grit diamond dental bur suitable for?

It is designed for Crown and Bridge Technology applications, providing controlled cutting and surface preparation.

Where is this product manufactured?

This instrument is made in Germany by Busch & Co. GmbH.

Compare With

Manufacturer Reference
Komet (Gebr. Brasseler) 842.104.021
NTI (Kerr Rotary) M842-021
Expert Help
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60-day returns
Busch products: 60 days, unopened and unused.
Returns & Refunds
Warranty
Busch instruments are guaranteed against manufacturing and workmanship defects.
View warranty
Made in Germany, shipped from the US
Busch & Co. has been making burs in Germany since 1905, under ISO 13485.