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Shapton K0702 Blade

Shapton K0702 Blade

By Shapton · Knife Sharpening · Kitchen & Cooking

  • Grit: #1000 (medium)
  • Dimensions: 210 x 70 x 15mm
  • Weight: approx. 500g
  • Material: ceramic abrasive (white aluminum oxide)
  • Splash-and-go (no soaking required)

Price not listed

New
Used, refurbished, open-box

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Problems, parts and running costs

Summary

A 15 mm ceramic water stone from Shapton’s Kuromaku line — the orange #1000, splash-and-go, sold in a ventilated plastic case that doubles as a stone holder. The one thing to check before buying: owners and one retailer say it cuts more coarsely than a true #1000.

Strengths

  • The default first stone: r/sharpening’s getting-started wiki and 2024–2025 threads name the Kuromaku #1000 as the top suggestion for beginners.
  • Chef Knives To Go, a registered US distributor, calls it the line’s flagship and one of the most consistently recommended ceramic whetstones in the world.
  • Splash-and-go: a one-time 5–6 minute pre-soak, then only splashed water — no soaking routine.
  • Cuts fast for a 1k and refines too: owners call it “a strange, wonderful stone” and a “great all-purpose stone”.
  • Wears slowly: owners and a US retailer report very slow dishing despite the 15 mm profile.
  • Works on carbon, stainless and powdered steels — everything except ceramics and superalloys — in a case that doubles as a holder.

Weaknesses

  • A true-fine 1000 it is not: buyers wanting a fine finish should compare Naniwa Chosera or Suehiro first.
  • Care rules are strict: no soaking past 30 minutes, no hot water, no detergent, no dishwasher, no fan drying.
  • It can crack from sudden drying or temperature swings; dry-climate owners need sealed storage between uses.
  • The surface clogs and goes slick; flattening needs Shapton’s own lapping plate or the NAORU system, an extra purchase.
  • If dropped or broken, the stone cannot be repaired; only replacement cases are available.

Verified specifications

ModelK0702 — Shapton Kuromaku, also sold as Pro Stone or Ha-No-Kuromaku; a single stone, not a set.
SeriesKuromaku — solid 15 mm ceramic stone with a plastic storage case; distinct from RockStar (10 mm) and GlassStone.
Grit#1000, medium; orange is the #1000 stone in the Kuromaku line.
Abrasiveceramic, white aluminum oxide in a ceramic bond.
Splash-and-gono soaking after an optional 5–6 minute pre-soak on first use.
Use with water; oil is allowed, but a stone used with oil should always be used with oil.
Suitable for all blade materials except ceramics and superalloys.
Dimensions210 × 70 × 15 mm; approx. 500 g (retailer specs say 560–578 g).
In the boxstone plus ventilated plastic case with non-slip feet and a raised edge that works as a holder; no angle guide or stand.
Made in Japan; Shapton founded 1978 in Mashiko, Tochigi.
Warranty2 years on materials and manufacturing defects per retailer spec tables; Shapton’s own English pages list no warranty term.
Full research notes and sources

Grit: a 1000 that plays like 600–800

For resetting edges and learning, the extra bite helps; for fine finishing, it is the limit of the stone.

Care and flattening

Shapton’s care rules are strict and worth following. Splash water while sharpening, wash dirt off with a brush or sponge after use, and never use detergent, hot water or the dishwasher. Soaking never goes past 30 minutes — over-soaking softens the surface — and the stone dries naturally indoors, away from sunlight. Never store it damp with the polyethylene foam liner, and in dry climates keep it sealed in a bag or container between uses; cracks form mainly from sudden drying or temperature swings. White marbled patterns and discoloration are natural, not quality problems.

Flattening is the other routine. Shapton recommends lapping before every sharpening session, ideally, with a pencil-grid check for contact, and prescribes its own lapping plate or the NAORU system rather than sandpaper. A dished or clogged stone is recoverable, so the stone has a long service life if the owner buys a flattening tool.

Running costs

Water is the only consumable — no subscriptions, no locked-in supplies. The real recurring cost is flattening: Shapton’s Diamond Glass Lapping Plate for fine stones (#500 and up) costs about $40+ at Chef Knives To Go accessory listings, and the NAORU cast-iron system with lapping powders is sold separately. Owners hitting chips or nicked edges the #1000 cannot fix efficiently may add a coarse stone (#120–320). If the case breaks, Shapton sells replacement boxes.

Is it worth it?

US specialist retailers price the stone between about $31 and $69: Knife Sharp Edge lists it at $31.20 on sale ($39.00 list), Chef Knives To Go at $42.00 (marked down from $45.00), KAMA-USA at $49.00 on sale ($58.00), Hocho Knife at $53.99 ($61.99) and Japan Knife Shop at $68.99; MTC Kitchen lists $45.00 but was out of stock at capture. Gray-market imports are listed at $18.75–$23.00 — import channels, not normal US retail anchors.

At under $30 it is a strong beginner buy; from $31–42 it is good value at normal US retail. From $43–55 the value case gets fair — compare Naniwa Chosera or Suehiro — and above $55 it is weak for a lone #1000, especially since Shapton itself recommends the Blue 1500 as the single-stone choice and the Orange 1000 plus Wine 5000 pair for household knives.

Which model this is

This page covers the Shapton Kuromaku K0702 — the orange #1000 stone, also sold as Shapton Pro Stone or Ha-No-Kuromaku. Kuromaku stones are solid 15 mm ceramics in plastic cases, and the line runs from K0701 (#120) to K0711 (#30000). Retail product data consistently lists UPC/JAN 4944509307023.

The word “Blade” in some marketplace titles is a listing artifact, not a Shapton line, and no Shapton material confirms the “Black Shade Series” name some listings add.

Sources

Manufacturer:

Independent reviews:

Retailers:

Owner reports:

Marketplace listings:

Buying guides for this category

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