The Atoma Diamond Stone Replacement Sheet is a genuine replacement plate designed for the Tsuboman Atoma system.

When to replace:

• When sharpening begins to feel less efficient

• When the surface is no longer perfectly flat

• When sharpening time noticeably increases (e.g., what once took 1 minute now takes 2 minutes)

Since surface flatness gradually changes with use, we recommend replacing the sheet periodically for best performance.

Size: 210 × 75 × 1 mm
Weight: 175 g

⚠ Note: This product is the replacement sheet only. An aluminum base plate (Atoma body) is required to attach and use it properly.

Specifications — Tsuboman Atoma Diamond Stone (by grit)

#140

• Usage: Heavy grinding and stone flattening

• Recommended for: Very coarse whetstones (#120–#400)

#400

• Usage: Standard stone flattening

• Recommended for: Medium-coarse whetstones (#400–#1000)

#600

• Usage: Fine flattening and light sharpening touch-ups

• Recommended for: Medium to fine whetstones (#1000–#3000)

#1200

• Usage: Precision flattening and fine surface preparation

• Recommended for: Finishing whetstones (#4000 and above)