Kuniyoshi Rust Eraser Sabitoru Fine Gray Rubber Abrasive Compatible With Metal

I was skeptical about this product but it works well. I had a super rusty hori hori knife and a couple kitchen knives that needed a spot removal. The kitchen knives were a breeze. Rust came out instantly. The hori hori knife is a work in progress but you can see by the before and after pics that this product really works. I soaked the eraser in water for about 5 min prior to using and dipped it several times during the cleaning. Be sure to have paper towel on hand and put something under the area you are working, as it can get messy.

Ordered this because I restore a lot of knives and tools, and hone and sharpen all types of blades. Haven’t tried cleaning a stone with it, but it removes rust and scratches with ease. It does wear down a little but the size does make up for that. Doesn’t scratch wood, so it comes in handy for the brass pins on knife handles. Love this thing. Do be sure to oil your knives after use if they aren’t stainless as this is a water based item. Ten out of ten in my book. Worth the money for sure. It does wear down fast for thicker rust but I only have the fine red. Will invest in the medium grit white one for sure.

A VERY fine abrasive rubber block for removing rust and patina from knives and other tools. I dabbed a little clean water on the eraser and the blade of a carbon Opinel and rubbed.with the grain of the grind on the blade with very light pressure. Worked like a charm. Just use the grits in succession and support the knife on a flat surface. Then wipe off or wash your knives, dry them by hand well, oil with food grade mineral oil or Wicked Wax and store in your knife block or other clean dry area. Works very well

Works good on ceramic sharpening stones cleaner and less mess than skuber , chemicals and it's fast good hack.

It feels kind of like an eraser, and it works kind of like one to (but for rust). I used it on my cheap knives, which rust very easily (go figure), and it’s awesome. The rust came off easily. Love it! I’d definitely recommend this for an easy and cheap way to get off a little rust.

This really worked well trying to remove rust from a knife. Pleasantly surprised.

Great way to remove small stains from blades. Sometimes I even run them over the edge to restore the mirror polish

I used it and true it does rub off rust but no different than any bartenders keeper powder. Package is all written in oriental language of some sort but really no big deal unless maybe dealing with horrific rust. it certainly does not strike me as a five star product.