Bernardo Sharpening Jig for Axes NTS 200 / 250 Pro / 250 Pro Vario
The device allows for controlled sharpening of flat and curved blades with a fixed sharpening angle. The support holds the tool precisely in relation to the grinding wheel, preventing slipping and angle variations. This stability is essential for professional axes where edge consistency is critical.
Unlike freehand sharpening, the device ensures a constant angle across the entire blade width. The result is a uniformly sharp edge and a blade that maintains its original performance for more sharpening cycles.
This accessory is essential for carpenters, loggers, and artisans who regularly use axes. Compatibility with three NTS models makes the investment worthwhile even for small workshops.
Who the axe sharpening device is suitable for
| Profile |
Suitable? |
Reason |
| Craftsman / Carpenter |
Ideal |
Professional and repeatable sharpening; consistently high-performing tools |
| Logger / Forester |
Ideal |
Axes are critical tools; frequent sharpening requires precision and speed |
| School / Workshop |
Appropriate |
Useful for teaching safe sharpening; complete angle control |
Not suitable for: Those who use axes occasionally (a few times a year) and prefer to have them professionally sharpened; those who only work with wood lathes and do not own axes to sharpen.
Technical specifications
Compatibility and mounting
| Parameter |
Value |
| Compatible models |
NTS 200, NTS 250 Pro, NTS 250 Pro Vario |
| Guide type |
Fixed tool holder with angle control |
| Application |
Sharpening axes, hatchets, flat and curved blades |
| Mounting |
On the lathe support |
Compliance
- CE – Complies with EU Machinery Directives
- Bernardo Austria – Made in Austria
Standard equipment
- Tool holder guide for axes
- Mounting bracket for NTS spindle
- Clamping blocks
Frequently asked questions
What sharpening angle does the device use?
The Bernardo device maintains a fixed and optimized angle for axe blades (typically 25-35°). The precise angle depends on the grinding wheel profile and Bernardo instructions provided with the device.
Can I sharpen small hatchets with this device?
Yes, the device is versatile for blade diameters from approximately 50 mm to 150 mm. Very small hatchets (kitchen) may not fit stably; contact Krollit to check compatibility for specific models.
How long does it take to sharpen an axe?
With the guide, the average time is 5-10 minutes per blade, depending on wear and grinding wheel speed. Freehand, the time is similar but quality control is lower.
Does the device work on grinding wheels of different diameters?
Yes, the device adapts to standard size grinding wheels (80-125 mm diameter). For very small or very large grinding wheels, contact Bernardo to check adaptability.
What maintenance does the device require?
Minimal: regular cleaning from metal and wood dust; occasionally, light lubrication of the articulation points. It does not require periodic maintenance like grinding wheels.
Can I also use it to sharpen kitchen knives?
No, the device is designed for wide flat blades (axes). Kitchen knives have very different profiles and sizes; using the device would not be safe. For knives, Krollit recommends specific accessories.
