Nubatama Ume #220 (Green)
Ken Schwartz called the 220 an excellent choice for coarse work, and pointed out that its scratch pattern saves you the cleanup a 140 diamond plate leaves behind.
| Feature | Specification |
|---|---|
| Brand | Nubatama |
| Type | Synthetic |
| Grit | #220 (Coarse) |
| Series | Ume (Green) |
| Binder Hardness | Standard |
| Profile | 205 × 75 × 50mm Brick |
Buy This Stone If You're
- Setting bevels and raising a burr on dull or neglected knives.
- Running volume work where one coarse stone does most of the heavy lifting.
- Wanting a coarse step that leaves less to clean up than a diamond plate.
Water
Nubatama range stones should not be permasoaked. Let dry fully before storage; coarse stones hold water a long time.
Progression Ideas
- Preceding Step (Lower Grit): Nubatama Ume #180, #120 or #60 for heavier damage.
- Following Step (Higher Grit): A 400–600 grit stone, or straight to a 1000 on softer steels.
Ken Schwartz Video
Notes
- The video above compares the Ume and Bamboo stones at this grit side by side.
- Ken described a coarse stone like this as the most important one in a high-volume kit.
- A 140 diamond plate cuts faster but leaves a coarser scratch pattern to remove afterwards.
Read More
- Nubatama Green Ume 220 Brick – A working chef’s review, with Ken on where each coarse grit earns its place.
- Efficiency On Dull House Knives – Ken building a fast coarse-to-finish routine for high-volume restaurant knives.
- Quick Overview Of Nubatama Stones – A tour of the whole line and how the grits were designed to fit together.
- Learn From My Mistakes… Stones Cracking – Permasoaking and drying guidance for the full Nubatama range, and why it matters.
Condition
- Stone: New and unused.
- Packaging: While our inventory is new, the original packaging may show minor shelf wear, scuffing, or external softening due to warehouse storage and handling over the last five years. Internal protective wrapping (plastic or paper) may show signs of handling, minor tears, or may occasionally be absent—this never affects the condition of the stone itself.
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.
Provenance
Everything we carry comes from the personal collection of Ken Schwartz — the sharpener behind Precise Sharpening, who built the Nubatama line and gathered the naturals that sat beside it on his bench. The synthetics are new and unused. The naturals were his.