Shapton Kuromaku Japanese Whetstone #30000 Grit (Purple) K0711 Shapton Professional

Sale price$513.00 Regular price$699.00

The Shapton Kuromaku Japanese Whetstone #30000 Grit (Purple) K0711 is a professional-grade extra micro fine polishing stone that belongs to the renowned Kuromaku range. It features a colour-coded system for easy grit identification and is designed to leave a bright mirror finish on blades.

This #30000 grit (Purple) stone is ideal for final polishing and refining of the blade's edge. It removes minuscule imperfections and provides an incredibly sharp and refined edge that enhances cutting performance. Whether you're a professional seeking the highest level of sharpness or a serious home sharpener looking for exceptional results, this polishing stone delivers outstanding performance.

Crafted with exceptional craftsmanship in Japan, the Shapton Kuromaku Whetstone offers a Splash & Go design, eliminating the need for soaking prior to use. Its extra micro fine grit ensures precise polishing and a brilliant mirror finish, elevating your blades to the highest level of sharpness.

  • Grit: 30000 (Purple)
  • SKU: K0711
  • Whetstone Size: 210 x 70 x 15mm
  • Weight: 900g
  • Plastic Storage Case Included
  • Professional Polishing Stone
  • Made in Japan

To maintain the Shapton Kuromaku stones and keep their surface flat for a long lifespan, we recommend using a lapping plate. Choose from options such as the Jende Industries Glass Lapping Plate, Shapton Diamond Glass Lapping Plate, or the Shapton NAORU cast iron lapping system.

The Kuromaku stone is a Splash & Go stone, so soaking is not necessary. After sharpening, clean the stone and allow it to air dry naturally in a shaded position. Rapid drying can cause cracking, while leaving the stone in water can lead to degradation.

Q: Which face of the KUROMAKU series sharpening stones should I use?
A: You can use either face, but we recommend starting on the side where no letters have been printed.
Q: Recent KUROMAKU stones look different from the designs bought in the past. Is there any difference in spec?
A: No. The only change was in the printing design, not in the quality or specs of the stones.
Q: Are any of the KUROMAKU sharpening stones recommended for normal household knives?
A: We recommend the Orange Medium (1000) sharpening stone and Wine Fine (5000) finishing stone. If you intend to use only one stone, we recommend the Blue Medium (1500) sharpening stone.
Q: I want to try using "KUROMAKU Purple," but the 'Precautions' state it should be used after "KUROMAKU Melon." Would it be okay to use it for sharpening after "KUROMAKU Yellow" instead, as this is finer?
A: That would be fine with high hardness steel, but for blades made from softer materials, please do use "KUROMAKU Melon." This is due to the stones' physical characteristics.


  • FREE Standard Delivery Over $200
  • FREE Customer Pick-Up (Syd Only)
  • Same day dispatch until 2PM AEST (Mon-Fri)

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Same day dispatch until 2PM AEST (Mon-Fri)

*Delivery estimates provided by Australia Post

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Customer Reviews

Based on 3 reviews

Stackable case is a win

Jan d

Razor sharp

saul g

Versatile and dependable

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