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Nubatama Ume #60 (Black)

$53.13
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Nubatama Series Logo

Nubatama Ume #60 (Black)

$53.13
3 in stock
Why You Need This Stone: The #60 grit is an extra-coarse abrasive designed for severe metal removal, heavy reprofiling, and major edge restoration. Formulated in a massive 50mm "brick" profile for exceptional service life under shop use, this stone allows you to reshape damaged blades and grind out deep chips rapidly on a bench stone without risking the temper of the steel.

Buy This Stone If:

  • You need to repair severe edge chips, broken tips, or heavily damaged blade geometries.
  • You are performing extensive thinning on thick cutlery or reshaping primary bevels from scratch.
  • You want the massive working height and long lifespan of a 50mm brick profile from the Ken Schwartz Estate collection.

Specifications

  • Brand: Nubatama
  • Grit: #60 (Extra Coarse)
  • Series: Ume (Black)
  • Type: Soaking / Semi-Soaking
  • Dimensions / Profile: 210 x 75 x 50mm Brick
  • Binder Hardness: Medium-Hard
  • Provenance: Ken Schwartz Estate

Notes & Usage

  • Common Tasks:
    • Grinding out deep edge chips, broken tips, and major bevel damage.
    • Aggressive thinning behind the edge on thick, unmaintained kitchen or shop tools.
    • Rapidly resetting bevel angles before transitioning to standard coarse repair stones.
  • Cutting Action & Speed: Uses coarse silicon carbide abrasive particles to shear through steel rapidly. It creates a dark slurry that accelerates material removal during heavy grinding sessions.
  • Surface Feedback: Very tactile with an aggressive, audible "bite." The stone provides direct feedback on high spots along the bevel.
  • Steel Compatibility: Works effectively across all metal types, including tough stainless alloys, carbon steels, and hard tool steels.

Progression Ideas

  • Preceding Step (Lower Grit): None (this is among the coarsest bench stone steps available for manual grinding).
  • Following Step (Higher Grit): Nubatama Ume #180 or Bamboo #150 (to refine the #60 scratch pattern before moving to medium repair grits).

Also Consider

  • For Extreme Material Removal: If you need maximum aggressive grinding, consider the Nubatama Ume #25 Black Aratae.
  • Essential Maintenance: Pair with an extra-coarse diamond flattening plate (e.g., 140 grit) to maintain surface flatness during intensive grinding.

Condition

New in original factory box and packaging. Due to long-term storage (5+ years), outer boxes and paper wrapping may show minor shelf wear or scuffing.

Note: Photos represent our stock inventory for this stone; individual box wear or color tone may vary slightly from the unit pictured. Reference objects (rulers, coins) are for scale only and are not included.

Shipping

Orders are typically processed and shipped same day from Santa Maria, CA.

Every stone ships in a new, high-quality box, individually wrapped in bubble wrap and packing paper for maximum protection in transit.

Please reach out with any questions before or after purchase — happy to help.

Return policy

At Pacific Waterstone, we stand behind the authenticity and quality of every stone we sell.

Incorrect or Mislabeled Items
If you receive an item that is mislabeled, damaged, or significantly mischaracterized in its listing, we will make it right. You may return the item for a full refund or exchange with no restocking fees, and we will cover all return shipping costs.

Standard Returns
If you change your mind or wish to return an item for any other reason:

  • Returns are accepted within 14 days of delivery.
  • Items must be returned in their original, unused condition with all original packaging.
  • A 10% restocking fee applies to cover processing costs.
  • Return shipping costs are the responsibility of the customer.

To initiate a return, please contact us with your order number and the reason for your request.

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