Naniwa DR-7504 Diamond Stone #400

Unlike many other diamond abrasive plates, Naniwa's Diamond Stones do not feature a single layer of diamonds on the surface, instead there's a layer of diamond impregnated resin that's 1mm thick. The layer is bond on the base which makes the stone looks like an ordinary whetstone in term of dimensions - great for fitting onto your whetstone holders. The #400 coarse grit diamond stone is particularly useful for repairing chips and sharpening extra dull blades that are made of extra hard steels and ceramics. Soaking is not needed prior to sharpening, so a splash of water will be sufficient for the start.

Made in Japan

Spec:

• Origin: Osaka, Japan
• Model No.: DR-7504
• Grit No.: #400 WA
• Type: Splash & Go
• Dimension: 210 x 70 x 16mm (8.2 x 2.7 x 0.6")
  
• Weight: 684g (24.13oz)
• Abrasive: Diamond Impregnated Resin (Thickness: 1mm)
• Cohesive agent: Resin-bound
  
• Comes with a dressing stone

How to use:

Do not soak this whetstone. Simply apply water on the surface when ready to use. Rinse and wipe dry with a hand towel when done, and allow air dry at room temp. Do not leave in water.

How to clean:

If the stone’s performance is slowing down, or seems to be diminishing, you can clean using the nagura stone. Be sure to clean the entire surface of the whetstone when using any of these methods to ensure even wear of the whetstone’s surface.