Busch Fig. 21 Cylinder Square Cross Cut Burs are among the most trusted cutting tools in professional jewelry work. Known under the European designation Fig. 36 and the USA designation Fig. 21, these burs are crafted from tungsten vanadium steel to ultra-high precision tolerances—a hallmark of Busch quality that jewelers and metalsmiths have relied on for generations. Available in 15 sizes ranging from 0.60mm to 3.10mm, this cylinder square cross cut profile delivers clean, controlled material removal in a wide variety of bench applications.
Features
- Cylinder square cross cut profile for precise, consistent cutting action
- Manufactured from tungsten vanadium steel to ultra-high precision tolerances
- Available in 15 sizes from 0.60mm to 3.10mm
- Also referenced as European Fig. 36 / USA Fig. 21
- Sold in multiples of six per size
Specifications
| Bur Figure |
Fig. 21 (European Fig. 36 / USA Fig. 21) |
| Bur Type |
Cylinder Square Cross Cut |
| Material |
Tungsten vanadium steel |
| Size Range |
0.60mm – 3.10mm |
| Sold As |
Multiples of 6 |
Available Options
| Part # |
Bur Size |
| B118.427 |
0.60mm |
| B118.428 |
0.70mm |
| B118.429 |
0.80mm |
| B118.430 |
0.90mm |
| B118.431 |
1.00mm |
| B118.432 |
1.20mm |
| B118.433 |
1.40mm |
| B118.437 |
1.60mm |
| B118.439 |
1.80mm |
| B118.441 |
2.10mm |
| B118.443 |
2.30mm |
| B118.445 |
2.50mm |
| B118.447 |
2.70mm |
| B118.448 |
2.90mm |
| B118.449 |
3.10mm |
California Prop 65 Warning: