Busch is the most trusted name in jewelers' burs, and the Fig. 156C Hart 90 Degree Bur upholds that reputation with precision craftsmanship designed for professional metalsmithing and stone-setting work. Known in Europe as Fig. 414 and in the USA as Fig. 156C, these 90-degree hart burs are machined from tungsten vanadium steel to ultra-high precision tolerances, delivering consistent, reliable performance cut after cut.
This listing covers the larger size range — 4.00mm through 5.00mm — which are sold individually, giving you the flexibility to select only the exact size you need. Smaller sizes in the Fig. 156C family (below 4.00mm) are sold in multiples of six and are listed separately.
Features
- Busch Fig. 156C — European Fig. 414 / USA Fig. 156C designation
- 90-degree hart bur geometry for precise seat cutting and angled applications
- Constructed from tungsten vanadium steel for durability and cutting precision
- Manufactured to ultra-high precision tolerances
- Available in five sizes from 4.00mm to 5.00mm
- Sold individually — no minimum quantity required at this size range
Specifications
| Figure Number (USA) |
Fig. 156C |
| Figure Number (European) |
Fig. 414 |
| Bur Type |
Hart 90 Degree |
| Material |
Tungsten Vanadium Steel |
| Size Range |
4.00mm – 5.00mm |
| Sold As |
Individually |
Available Options
| Part # |
Bur Size |
| B118.516 |
4.00mm |
| B118.517 |
4.20mm |
| B118.518 |
4.50mm |
| B118.519 |
4.70mm |
| B118.520 |
5.00mm |