Busch Carbide Pear Cutter | Busch No. 427FX 060 – Fine Crosscut – HP | Pack of 1
The carbide cutter pear fine double cut from Busch & Co. GmbH is a precision rotary instrument engineered for controlled material removal across a range of demanding applications. Classified under ISO standard 500 104 237 140 060, this cutter combines a pear-shaped geometry with a fine double cut pattern to deliver smooth, accurate results with minimal surface disruption.
Key Features
- Shape: Pear – optimised for contoured surfaces and cavity preparation
- Cut type: Fine Double Cut – provides a refined finish with controlled chip removal
- Material: Carbide – offering exceptional hardness, longevity, and cutting efficiency
- ISO Classification: 500 104 237 140 060
- Made in Germany – manufactured to the highest quality standards
Instrument Dimensions
| Head Ø | 6.0 mm (ISO size 060) |
|---|---|
| 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.
Applications
The carbide cutter pear 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. |
Whether working in dental laboratories, prosthetic fabrication, or precision model construction, the carbide cutter pear fine double cut delivers consistent, repeatable performance. The fine double cut configuration is particularly well suited to finishing and detailing work where surface quality is paramount.
German Craftsmanship
Busch & Co. GmbH has a long-standing reputation for manufacturing high-quality rotary instruments. This product is proudly made in Germany, reflecting rigorous production standards and meticulous attention to detail.
Busch Warranty & 90-Day Returns
This Busch instrument is guaranteed against manufacturing and workmanship defects — we'll repair or replace it under normal professional use. Unused product in original packaging can also be returned or exchanged within 90 days of your invoice date. Full terms are on our Warranty page.

FAQ
What is the ISO classification for this cutter? The ISO classification is 500 104 237 140 060.
What materials can this carbide cutter pear fine double cut be used on? It is suitable for use in model making, plastics technology, crown and bridge technology, and model casting applications.
Is this product made in Germany? Yes, this instrument is manufactured in Germany by Busch & Co. GmbH to stringent quality standards.
Specifications: Busch No. 427FX 060
| Busch figure | 427FX |
| Shape | Pear |
| ISO size / head diameter | 060 (6.0 mm max head Ø) |
| Cut type / toothing | Fine Crosscut |
| Shank | HP |
| Lab applications (per Busch) | Crown and Bridge Technology, Model Casting Technique, Model Making, Plastics Technology |
| Pack size | Pack of 1 |
| Material | Carbide |
The pear head is a short, rounded oval for hollowing and contouring the inner and lingual surfaces of dentures. With its fine crosscut it is a finishing cutter, smoothing what a medium or coarse cutter has shaped. The 6.0 mm head is a bulk-reduction size: it covers a denture base quickly and is not meant for detail.
Read the guides: Dental Laboratory Burs, Polishers & Abrasives · Bur Speed Chart · Dental Bur Glossary · All lab carbide cutters
Part of our Double Cut Burs: Busch Crosscut Carbide Cutter Collection — browse all 142 shapes, cuts and sizes.

