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Abrasive wheel for NTS 250 Top / NTS 250 Vari
Abrasive wheel for NTS 250 Top / NTS 250 Vari is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
At Krollit, we guarantee a safe and reliable shipping process. Orders are handled with the utmost care and traceability until delivery.
For international shipments, please send your request via the dedicated contact form.
Upon delivery, always sign the delivery note with the words “subject to inspection” to allow for proper handling of any irregularities or discrepancies in the product.
Our goal is to ensure you receive prompt service and a worry-free shopping experience.
Abrasive wheel for NTS 250 Top / NTS 250 Vari
Description
Grinding Wheel for NTS 250 Top / NTS 250 Vario – Precision Sharpening for Cutting Tools
The grinding stone for NTS 250 Top and NTS 250 Vario sharpening machines is essential for achieving professional sharpening results. Made with professional-grade materials, it ensures controlled material removal and long life. Designed to always maintain an optimal profile during use, it is suitable for woodworking tool blades, knives, chisels, and scissors.
Logistics
Original spare parts available with 3–5 business day shipping. Customer support in Italian available.
Technical specifications
Main Features
Compatible with NTS 250 Top and NTS 250 Vario sharpening machines
Grit suitable for general and professional sharpening
Slow rotation for cold sharpening, without overheating
Stable and uniform surface for consistent results
Long-lasting and low wear
Technical Specifications
| Parameter | Value |
|---|---|
| Compatibility | NTS 250 Top / NTS 250 Vario |
| Material | Corundum / ceramic abrasive |
| Diameter | approx. 250 mm |
| Thickness | approx. 50 mm |
| Center bore | approx. 12 mm (variable depending on model) |
| Abrasive grit | Medium (e.g. 220 – subject to confirmation) |
| Rotation | Low speed, wet sharpening |
Package contents
1 sharpening stone
Optional mounting adapter (if included)
Warranty
Warranty terms and support procedures are available on the dedicated Krollit page.
View Krollit warranty termsFAQ / Frequently asked questions
Frequently Asked Questions
Grinding wheel for NTS 250 Top / NTS 250 Vario — what distinguishes it from a standard wheel?
The wheel for NTS 250 is calibrated for the specific geometry of the NTS 250 knife sharpener — width, bore hole, and working face profile are optimized for the machine's angle guides. A generic wheel might have incompatible dimensions or an unsuitable profile for the guided sharpening operations of the NTS 250. Always replace with the original Bernardo wheel for the NTS 250.
When should the grinding wheel be replaced?
The grinding wheel should be replaced when: the diameter has reduced to the minimum indicated in the manual (the periphery reduces with use), the surface has become shiny and no longer sharpens effectively (requiring dressing with a diamond dresser), there are visible cracks or chips (replace immediately — risk of breakage during use). Original spare parts available with 3–5 business day shipping. Customer support in Italian available.
Delivery times?
Original spare parts available with 3–5 business day shipping. Customer support in Italian available.
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