Precision Edge Preparation Before Mirror Polishing
The Pre-Polishing CBN Sharpening Set by PDTools is engineered for fast, controlled sharpening and precise edge preparation before the final polishing stages. Built with advanced vitrified bond technology, these stones deliver aggressive cutting performance combined with a clean and consistent scratch pattern.
This 4-stone progression is specifically optimized for professional sharpening workflows, allowing you to efficiently move from edge shaping to a refined pre-polished finish — ready for mirror polishing.
Product Line: PDT Premium Vitrified CBN Stones
PDT Premium Vitrified stones are designed for speed, stability, and versatility. The vitrified bond structure ensures:
- fast metal removal across all steel types
- consistent abrasive exposure
- minimal loading during use
- stable performance under pressure
These stones work effectively on both soft and high-hardness steels, making them a universal solution for demanding sharpening tasks.
Grit Progression (4 Stones)
- #225 — Coarse shaping and fast stock removal
- #285 — Scratch refinement and edge correction
- #550 — Fine sharpening and surface smoothing
- #1100 — Pre-polishing stage before mirror finish
This progression is perfectly balanced for professional kitchen knife sharpening, delivering fast results with excellent edge quality.
Key Features and Benefits
🔹 Fast & Efficient Cutting
Removes material quickly while maintaining full control over the sharpening process.
🔹 Clean Scratch Pattern
Creates a uniform surface, making the transition to polishing stages easier and more predictable.
🔹 Vitrified Bond Performance
Provides durability, consistent cutting behavior, and resistance to loading even under intensive use.
🔹 Universal Steel Compatibility
Works reliably with all types of steels, including high-hardness alloys.
🔹 Optimized for Pre-Polishing
Designed specifically to prepare the edge for mirror finishing.
Perfect Pairing for Mirror Edge
For achieving a true mirror-polished edge, it is recommended to continue sharpening with PDTools Expert Pro Stones (#3000–#15000 grit) after completing this set.
Specifications (Per Stone)
- Manufacturer: PDTools Superabrasives
- Model: PREMIUM VITRIFIED
- Abrasive: CBN
- Bond: Vitrified
- Format: 1″ x 6″ (150 x 25 mm)
- Abrasive Depth: 1/8″ (3 mm)
- Aluminum Blank Thickness: 5/32″ (4 mm)
- Total Thickness: 9/32″ (7 mm)
Conclusion
The Pre-Polishing CBN Sharpening Set (4 Stones) is a reliable and efficient solution for professionals who demand speed, precision, and consistency. It bridges the gap between aggressive sharpening and fine polishing — delivering a perfectly prepared edge for the final mirror finish.
Igor V. (verified owner) –
Exactly what I ordered! Just keep in mind that the product ships from Poltava, Ukraine, so a little patience may be required. Alex was very responsive and answered all of my questions promptly and professionally.
PDTools and KDTU sharpening stones are designed for the highest level of precision. Their exceptional flatness tolerance helps maintain a consistent sharpening angle and achieve perfect edge symmetry. The stones operate smoothly, without vibration and without the need for frequent flattening.
UKSG offers a wide selection of diamond and CBN stones featuring resin, vitrified, and metal bonds. I found these stones very pleasant to use, with excellent tactile feedback during sharpening. I highly recommend giving this company a try.