Busch Carbide Taper (Cone) Round Cutter | Busch No. 429SGXA 070 – Super Coarse Grit, XA-Cut – HP | Pack of 1
The carbide taper (cone) bur very coarse double cut from Busch & Co. GmbH is a precision rotary cutting instrument engineered for demanding material removal tasks. Built with a Taper (Cone) Round shape and a Left Twisted Very Coarse Double Cut geometry, this instrument delivers aggressive, efficient cutting action where rapid stock removal is essential.
Part of our Double Cut Burs: Busch Crosscut Carbide Cutter Collection — browse all 142 shapes, cuts and sizes.
Product Specifications
- Type: Carbide Cutter
- Shape: Taper (Cone) Round
- Cut: Very Coarse Double Cut
- Twist Direction: Left Twisted
- Standard Classification: ISO 500 104 194 225 070
- Shank: HP (Handpiece)
- Pack Contents: 1 instrument
Applications
The carbide taper (cone) bur very coarse double cut is particularly well suited to model making and technical craft work, where controlled yet aggressive contouring and shaping of materials is essential. The Taper (Cone) Round geometry allows access to angled surfaces and confined areas, making it a versatile tool for both technical and creative applications requiring precision stock removal.
German Engineering
Manufactured in Germany, this instrument reflects the exacting standards of precision and quality that Busch & Co. GmbH has built its reputation on. Every carbide taper (cone) bur very coarse double cut is produced to consistent dimensional tolerances, ensuring reliable and repeatable performance across extended use.
Instrument Dimensions
| Head Ø | 7.0 mm (ISO size 070) |
|---|---|
| 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.
Specifications: Busch No. 429SGXA 070
| Busch figure | 429SGXA |
| Shape | Taper (Cone) Round |
| ISO size / head diameter | 070 (7.0 mm max head Ø) |
| Cut type / toothing | Super Coarse Grit, XA-Cut |
| Shank | HP |
| 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. At 7.0 mm the head is one of the largest in the range, for rapid reduction of large surfaces.
Read the guides: Dental Laboratory Burs, Polishers & Abrasives · Bur Speed Chart · Dental Bur Glossary · All lab carbide cutters
Busch Warranty & 60-Day Returns
This Busch instrument is guaranteed against manufacturing and workmanship defects — we'll repair or replace it under normal professional use. Unused, unopened product in its original packaging can also be returned or exchanged within 60 days of delivery. Full terms are on our Warranty page and Returns page.
FAQ
What does double cut mean on a carbide bur?
Double cut refers to a crosshatch pattern of flutes that produces faster material removal compared to single cut, while also reducing hand fatigue during extended use.
What shank type is this bur?
This bur features an HP (Handpiece) shank, compatible with standard straight handpiece chucks.
Is this a single instrument or a set?
This listing contains one (1) carbide taper (cone) bur very coarse double cut instrument.
Where is this product manufactured?
This instrument is made in Germany by Busch & Co. GmbH.


