Busch Carbide Bud Cutter | Busch No. 425 040 – HP | Pack of 1
The carbide cutter bur flame medium cut from Busch & Co. GmbH is a precision-engineered rotary tool designed for controlled, consistent material removal across demanding applications. Crafted from high-quality carbide, this bur delivers reliable performance in professional and technical environments where accuracy is non-negotiable.
Product Details
This instrument is classified under the ISO standard 500 104 274 175 040, ensuring compatibility and traceability within regulated workflows. The flame geometry of the carbide cutter bur flame medium cut provides an ideal cutting profile for tasks that require both precision shaping and smooth surface finishing. The medium cut grade strikes the right balance between aggressive stock removal and surface quality, making it a versatile choice for a wide range of materials.
Applications
The carbide cutter bur flame medium cut is well-suited for the following dental laboratory applications:
| Plastics Technology — Shaping, trimming and finishing of acrylic dentures and appliances. | |
| Model Making — Trimming and detailing of plaster and stone models. |
Instrument Dimensions
| Head Ø | 4.0 mm (ISO size 040) |
|---|---|
| Shank | HP (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.
Quality & Origin
Manufactured in Germany by Busch & Co. GmbH, this carbide cutter reflects a long-standing tradition of precision tool manufacturing. German-engineered quality ensures dimensional consistency, extended tool life, and dependable cutting performance batch after batch.

FAQ
What ISO classification does this bur carry? This bur is classified as ISO 500 104 274 175 040, confirming its standardized geometry and cut specification.
What materials is the carbide cutter bur flame medium cut suitable for? It is particularly well-suited for model making materials and plastics technology applications, though its carbide construction makes it capable across a range of compatible substrates.
Is this product made in Germany? Yes, this instrument is manufactured in Germany by Busch & Co. GmbH to their established quality standards.

