Busch Carbide Taper (Cone) Round Cutter | Busch No. 429FX 040 – Fine Crosscut – HP | Pack of 1

The carbide cutter taper (cone) round fine double cut from Busch & Co. GmbH is a precision-engineered rotary instrument designed for demanding material removal and finishing tasks across a range of professional disciplines. Featuring a taper (cone) round geometry with a fine double cut pattern and identified by its distinctive red ring, this cutter delivers controlled, efficient stock removal with a refined surface finish.

Product Details

• Type: Carbide Cutter — Taper (Cone) Round
• Cut: Fine Double Cut
• Identifier: Red Ring
• ISO Classification: 500 104 194 140 040
• Pack Contents: 1 piece

The carbide cutter taper (cone) round fine double cut design provides a smooth cutting action that minimises chatter and ensures precise contouring. The fine double cut tooth geometry is ideal for situations where both material reduction and surface quality are priorities, reducing the need for secondary finishing steps.

Applications

This instrument is suited to a broad range of technical and clinical applications, including:

As a carbide cutter taper (cone) round fine double cut instrument manufactured in Germany, this product reflects the rigorous quality standards associated with Busch & Co. GmbH. Made in Germany, it is produced to consistently high tolerances for reliable performance across repeated use.

The carbide cutter taper (cone) round fine double cut 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.

FAQ

What does the red ring indicate? The red ring identifies this cutter as a fine double cut variant, helping practitioners quickly select the correct instrument for the task.

What is the ISO classification for this cutter? The ISO classification is 500 104 194 140 040.

Is this carbide cutter taper (cone) round fine double cut suitable for dental laboratory use? Yes, this cutter is well suited to crown and bridge technology as well as model casting and model making applications.