Suehiro Keshigomu Toishi (Rust Eraser whetstone)

Suehiro KC-91 #400 Rust Eraser is a Japanese abrasive eraser designed for removing light rust, stains, and surface discoloration from knife blades and other metal parts. The #400 fine grit allows controlled cleaning while preserving the original surface finish.

The eraser is used in a similar way to a standard eraser. The blade should be placed on a flat surface, and the eraser moved along the existing finish or brushing lines when present. Before use, the eraser should be moistened with water to improve control and reduce the risk of surface scratching.

Its compact size makes the KC-91 suitable for precise, localized cleaning during regular knife maintenance.

Specifications

• Product number: KC-91
• Type: abrasive rust eraser
• Grit: #400 (fine)
• Dimensions: 65 × 40 × 9 mm
• Package size: 160 × 52 × 12 mm
• Weight: approx. 50 g
• Application: rust removal, stain removal, surface cleaning
• Use with water: yes
• Origin (Made in): Japan