Busch Carbide Pear Cutter | Busch No. 427X 029 – Crosscut – HP | Pack of 1
The carbide cutter pear medium double cut from Busch & Co. GmbH is a precision rotary tool engineered for demanding material removal and shaping tasks. Designed with a pear-shaped geometry and a medium double cut tooth pattern, this cutter delivers controlled, efficient stock removal across a range of professional applications.
Product Specifications
- Type: Carbide Cutter
- Shape: Pear
- Cut: Medium Double Cut
- Standard Classification: ISO: 500 104 237 190 029
- Model: 427X 029 HP
Applications
The carbide cutter pear medium 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
| Head Ø | 2.9 mm (ISO size 029) |
|---|---|
| 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.
Why Choose This Cutter?
Manufactured to the highest standards in Germany, this carbide cutter pear medium double cut offers consistent performance, long service life, and reliable dimensional accuracy. The medium double cut configuration provides a balance between fast material removal and a smooth surface finish, making it a versatile choice for dental technicians who demand quality in every pass.
Whether you are working with plastics, dental restorations, or precision cast models, the pear shape allows comfortable access to contoured surfaces and cavities where precision is critical.
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 does medium double cut mean? A medium double cut refers to a cross-hatched tooth pattern that removes material at a moderate rate while producing a relatively smooth finish, suitable for finishing and shaping work.
What shank type does this cutter use? The HP designation indicates this cutter is designed for use with a handpiece (straight shank), compatible with standard HP rotary tools.
Is this a single unit purchase? Yes, this product is sold as a pack of 1.
Specifications: Busch No. 427X 029
| Busch figure | 427X |
| Shape | Pear |
| ISO size / head diameter | 029 (2.9 mm max head Ø) |
| Cut type / toothing | 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. A 2.9 mm head is a bulk-work size, best on denture bases and other wide surfaces. Its crosscut (double-cut) toothing removes stock quickly and clears chips well, so it is a shaping rather than a finishing cutter.
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.

