Naniwa Diamond Pro stone with grit #6000 is a premium diamond plate of ultra fine grit that is excellent for knife sharpening even when we are dealing with very hard steel and ceramics, for which regular whetstones prove ineffective or too slow. It is suitable for all types of steel.

A diamond stone is a great alternative for anyone who likes to save time on sharpening, as it removes material very quickly (both from whetstones and when repairing/sharpening knives), and works very well with all types of steel. One of the main arguments why a diamond sharpening stone works so well is that it is completely flat and does not wear/dish when used. 

🚩 Must be wet when in use! This is a splash-and-go stone, so it is not necessary to soak it before sharpening, just splash some water on the top side of the stone and ... action! As with all water stones, keep Naniwa Diamond Pro stones wet when sharpening but allow them to dry between uses.

The Naniwa Diamond Pro stone series differs from other diamond stones you may be familiar with. Naniwa Diamond Pro stones have a resin-bound diamond matrix layer bonded to a metal plate. Whereas many other diamond stones have only a single thin layer of diamond abrasive, the Naniwa Diamond Pro stones have several abrasive layers that form an impressive 1mm thick layer. This allows the stone to effectively "shed" worn layers, offering a fresh diamond grit.

Each Naniwa Diamond Pro stone comes with an additional dressing stone for keeping the diamond layer clean and functional. The dressing stone should also be soaked before use.

USAGE INSTRUCTIONS:

For knife sharpening - place the diamond stone on a flat surface and make sure it won't move around (use a stone holder for the most secure position). Proceed with the same movement/sharpening technique as with whetstones to sharpen the blade (see our Knife Sharpening Guide for details). A lower granulation (#140 - #600 grit) is recommended for initial sharpening, followed by the #1000 grit diamond stone and then the ultra fine #6000 grit. We recommend finishing with a leather strop. Make sure to splash some water on the diamond stone before sharpening.

Advantages of diamond sharpening stones:

• quickly removes material when repairing or changing the blade's geometry
  quick sanding and straightening
• can be used for sharpening very hard powder steels (ZDP-189, HAP-40, R2) and ceramics
• it retains its shape and does not wear/dish with use
• lower granulations (ex. #400 grit) are excellent for flattening whetstones and repairing damaged blades.

Disadvantages of diamond sharpening stones:

• for a really fine/smooth edge and very precise sharpening, whetstones are generally a better choice - diamond stones are too rough, but the 6000 is an ultra fine grit.
• not suitable for making "kasumi (mirror) finish" on the blade

For easier sharpening, we recommend purchasing a Stone Holder (Sink Bridge) to ensure mess-free and a stable position of the stone during sharpening.

Specifications:

*Sidenote: Due to market expansion, Naniwa often changes product names and their packaging, so use the model specification for reference.