Busch Carbide Taper (Cone) Round Bur | Busch No. 429GXA 060 – Coarse Grit, XA-Cut – HP | Pack of 1
The carbide taper (cone) bur coarse double cut from Busch & Co. GmbH is a precision-engineered rotary cutting instrument designed for demanding material removal tasks. Classified as a Taper (Cone) Round profile with a Left Twisted, Coarse Double Cut geometry, this HP-shank carbide cutter delivers aggressive stock removal while maintaining directional control throughout the cut.
Product Overview
This carbide taper (cone) bur coarse double cut — model 429GXA 060 — is built for professionals who require reliable, repeatable performance across a range of applications. The coarse double cut configuration generates larger chips and reduces heat buildup, making it well suited for rapid shaping and contouring work. The left-twisted flute geometry is engineered to control chip evacuation and reduce vibration during operation.
Applications
The carbide taper (cone) bur coarse double 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. |
Key Features
- Carbide construction for long service life and consistent cutting performance
- Taper (Cone) Round shape for versatile contouring and reach into angled surfaces
- Coarse Double Cut pattern for high material removal rates
- Left Twisted flute design for improved chip flow and reduced chatter
- HP (Handpiece) shank for broad compatibility with standard rotary tools
- Manufactured in Germany to stringent quality standards
The carbide taper (cone) bur coarse double cut 429GXA 060 is sold as a pack of 1, making it straightforward to stock and reorder as needed. As a Made in Germany product, it reflects the precision engineering and quality control that Busch & Co. GmbH is recognised for among dental practices and dental laboratories.
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.
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 the double cut pattern mean? A double cut bur features two sets of crossing flutes, producing a finer finish than a single cut while still offering efficient material removal — the coarse variant prioritises speed of cut.
What materials is this bur suitable for? This carbide taper (cone) bur coarse double cut is designed primarily for model making and plastics technology applications, as indicated by the manufacturer's application guidance.
What shank type does this bur use? It uses an HP (Handpiece) shank, which is compatible with a wide range of standard rotary handpieces and tools.
Specifications: Busch No. 429GXA 060
| Busch figure | 429GXA |
| Shape | Taper (Cone) Round |
| ISO size / head diameter | 060 (6.0 mm max head Ø) |
| Cut type / toothing | Coarse Grit, XA-Cut |
| Shank | HP |
| Lab applications (per Busch) | Model Making, Plastics Technology |
| Pack size | Pack of 1 |
| Material | Carbide |
The taper (cone) round head is the all-purpose lab contouring shape: the cone reaches into interdental areas and around clasps while the rounded tip avoids gouging. The XA-cut is a left-twisted crosscut: the reversed helix pushes chips away from the work and keeps the cutter from grabbing. 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.
