Togo Reigo vs Aogami #1

Detailed metallurgical comparison between Togo Reigou Steel and Blue Paper Steel #1.

TOGO-REIGO

Togo Reigo

Togo Reigou Steel

Extremely rare historical steel produced by Andrews Steel Company in the late 19th century. Known for achieving White #1 levels of keenness with Blue Super edge retention. Notoriously difficult to forge, requiring master-level heat control. Tools made from this steel are among the most coveted in the world.

carbonUnknown (High)
Sharpness
10
Edge Retention
10
Ease of Sharpening
5
Rust Resistance
4
AOGAMI-1

Aogami #1

Blue Paper Steel #1

High-carbon steel alloyed with chromium and tungsten for enhanced wear resistance and edge retention. Ideal for hard woods and heavy use. Forged by masters who prize its demanding nature, it rewards a skilled sharpener with extraordinary edges that outlast almost any other carbon steel.

carbon1.25–1.35%chromium0.30–0.50%tungsten1.50–2.00%
Sharpness
9
Edge Retention
9
Ease of Sharpening
6
Rust Resistance
4