Miyagoshi PA #220 Flattening Stone, Ceramic

Miyagoshi PA Flattening Stone #220 – Flattening Stone

The Miyagoshi PA #220 flattening stone is a specialized tool designed to maintain the flatness of sharpening stones. Made by Miyagoshi Seito (宮越製陶) in Kyoto, it’s created through a vitrified sintering process with high porosity, which significantly speeds up and simplifies the flattening of stones—even harder ones and those with a finer grit.

It uses high-quality Pink Alumina (PA), which ensures uniform abrasion without the risk of damaging the working surface of the sharpening stones. The stone is safe to use with sharpeners with a grit of #220 and above, making it a universal tool for stone maintenance.

Application:

The Miyagoshi PA #220 stone is used for:

• flattening sharpening stones that have become bulging or concave,
• cleaning and restoring an even working surface,
• improving the working efficiency of medium and high-grit stones.

Thanks to its porous structure, it works quickly and aggressively without clogging or causing excessive wear to the stones being flattened.

Key features:

• handcrafted in Kyoto – quality control and precision craftsmanship,
• new, more porous structure – faster and more effective flattening,
• high-quality Pink Alumina (PA) – durable and uniformly abrasive,
• safe for stones with a grit of #220 and above,
• hard, stable format – maintains its geometry and performance for a long time.

Technical specifications:

• Brand: Miyagoshi Seito (宮越製陶)
• Product name: Miyagoshi PA Flattening Stone #220
• Type: Flattening stone
• Grit: #220
• Grain: Pink Alumina (PA)
• Binder: vitrified, fired at high temperature
• Production method: pressure molding, high-porosity sintering
• Color: pink
• Dimensions: approx. 205 × 65 × 32 mm
• Weight: approx. 900–1000 g
• Place of production: Kyoto, Japan
• Application: flattening sharpening stones (recommended for grits > #220)