Nubatama Ume #1000 HH (Speckled Extra Hard)

$61.18

1 in stock

Why You Need This Stone: The #1000 HH (Extra Hard) is engineered for maximum dish resistance in a soaking waterstone. Sourced from the Ken Schwartz Estate, this stone provides an ultra-firm surface that resists gouging and dishing during intensive bevel work, delivering exceptional tactile clarity when setting edges on high-hardness steels.

Buy This Stone If:

You require maximum surface flatness retention during edge setting and burr formation.
You sharpen ultra-hard powdered metallurgy steels, tool steels, or narrow bevel tools.
You want the hardest binder formulation available in the Ume 1k series.

Specifications

Brand: Nubatama
Grit: #1000
Series: Ume (Speckled Extra Hard)
Type: Soaking / Semi-Soaking
Dimensions / Profile: 210 x 75 x 30mm Flat
Binder Hardness: Extra Hard (HH)
Provenance: Ken Schwartz Estate

Notes & Usage

Common Tasks:
- Precision primary burr setting on high-hardness steels.
- Refining scratch patterns while keeping bevel lines sharp and crisp.
- Working narrow apexes without dishing or rounding the stone face.
Cutting Action & Speed: Dense abrasive packing maintains aggressive cutting action with virtually no slurry formation, keeping the apex in clean contact with the stone face.
Surface Feedback: Extremely crisp, solid feedback with zero surface deflection.
Steel Compatibility: Ideal for high-alloy tool steels, powder steels (R2/SG2, ZDP-189), and hard carbon steels.

Progression Ideas

Preceding Step (Lower Grit): Nubatama Ume #220 or Bamboo #320 (for preliminary bevel reshaping).
Following Step (Higher Grit): Nubatama Ume #4000 or Ume #6000 (for fine edge finishing).

Also Consider

For a Milder Hardness: Consider the Nubatama Ume #1000 H for a slightly more responsive feel.
Essential Maintenance: Pair with a diamond flattening plate to dress the extra-hard surface as needed.

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.

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.

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.