Rust Eraser Sabitoru Medium and Fine 2-piece Set

I got these in today and was excited to try them on my shapton glass and rockstar stones. I soaked the fine one for a bit over ten minutes but they only had a few bubbles when I first put it in and that was it but I left it in anyway. With only the first few strokes I was able to see and feel my stones getting nice and clean. I finished cleaning them, rinsed them off really good but didn’t touch the ceramic sides, and then left them to dry. I was surprised how awesome they felt once dried, they are completely smooth and perfectly clean. I didn’t see anything come off of the erasers, just white ceramic from my stones, and I’ve already been told these can last for years. At only just over $5 each these are an excellent addition to my arsenal. I’m going to use the coarse eraser for my whatever a high polymer eraser can’t remove from my diamond stones as I’ve been told these work great for that too. Not to mention the intended purpose of being able to remove rust, these are just so versatile, effective, and cheap. It’s great to find such awesome products like these little gems.

Well scrub me stupid! I have never ever found something more effective and versatile for removing rust and rust stains on metal! Again, because hobbies, it started as a pinball thing. And it was suggested by other pinball people that these Japanese scrubby things would clean the rust and staining from the lock bar area and coin door, as well as any other shiny shiny metal on the pinball body. Holy tarnished metal Batoo-ma’am! Do they ever work good! Ease of muse? Rub away your problems and failures like using a rubber eraser on your high school math tests. Cleaning quality? Like wiping away years of neglect and regret without using harsh chemicals or prescription drugs! Durability? Two years now, many scrubbings later, and they still work and haven’t worn out! They are looking rough, but like I said two years and I am only now thinking of ordering more! If I used these on my rusty truck, there wouldn’t be a truck left, but for minor rust, you definitely can’t beat these. Oh, and you can use them for their intended purpose too! They really sharpen knives well! Very versatile and easy to use and Highly recommended.

As I said in my review of the fine (red ) version I bought as an extra, these are excellent tools for quick touch ups and polishing . Small enough to get into tight areas near the handles, You can always use Wicked Clean or Flitz afterward and then wash your knives before you use them with soap and water if desired. Works as indicated

I received this and since I can't read Japanese I had to feel which one is fine and medium. Fine = red lettering. Medium = white lettering. The medium works better than the fine on knives. I've used them on my Norton IB8 sharpening stone to remove surface build up, neither worked well probably because the stone is coarse with a 100 grit side and 320 grit side. The fine eraser works good as a pencil eraser (not kidding). I've tested it on paper. I will be using the medium eraser in the future to remove rust on other metal tools that I have. I've seen videos and people have been able to use this to remove build up / load up from sharpening stones but they have a much higher grit than I have.

There came recommended by another PCB repair tech for cleaning edge connectors and chip legs. They are rubber-like, not like sandpaper. This works really well for delicate metals. Happy to have found these!

I'm incredibly impressed with its performance. I've tried various methods to remove rust from my knife blades, but nothing has worked as effectively as this product. The erasers effortlessly eliminate rust, leaving my blades looking brand new. The medium and fine grits offer versatility for different levels of rust, and the results are truly remarkable. If you're looking for a reliable and efficient way to remove rust from your knives, this set is a product you absolutely must have. This review represents my personal opinion and experience with this product. I am not affiliated with the manufacturer or seller, and this review should not be interpreted as an endorsement or professional advice. Any reliance on the information provided is at your own risk.

I don't have a cool knife collection to show how well these work (I'm seething with jealousy at the rest of you) but I did get the rust cleared from the base of a VERY chromed up forsa work lamp and you can barely tell. The ability to slightly bend the rust eraser also let me clean up rust from the internal bend on some old camping cookware. Overall great, I bought more.

I frequently refurbish vintage Japanese knives and have been doing it a long time. I have all manner of methods for rust removal from vintage blades including vinegar, fine glass bead blasting, buffing, progressive wet or dry sand paper, mechanical methods with bronze or steel wool and a putty knife and even electrolysis or a mix of those processes. One method I had not tried was a Japanese “rust eraser”. I’ve seen them around the web in videos and on knife websites and was curious as to their effectiveness. The medium and fine versions arrived and I tried them on a vintage blade from the 1970’s. I soaked the medium “eraser” for about 5 minutes and went to work. (One note - the eraser packaging is written in 100% Japanese and once I figured out the medium eraser from the fine eraser, I marked it with a Sharpie.) The erasers work OK but I really don’t see any advantage over progressive wet sanding with silicon carbide sand paper. I wrap the wet/dry paper around a silicon mixing spatula for some “give” and it works great. If you have some “allure” to the tradition of a Japanese eraser, I get that but I’m a results driven guy and I see faster sanding with coarser grits of wet sandpaper and the capability to go to 3000 grit paper for only a few bucks. And the results can be exactly the same as the eraser but you have far more latitude with the wide range of sand paper grits available. It truly depends on the look you are going for as well - traditional satin finish, high polish or a mix. I think if you want to clean up a gently tarnished blade, the erasers might be a good choice. The photo shows a number of vintage blades being readied for renovation. The knife on the far right is one that is completed with a high polish and a tapered custom walnut/polypearl handle that is larger in size than a traditional Japanese handle and easier to grip for folks with big mitts like me. The highly polished blade with the new handle was glass bead blasted, wet sanded to 1500 grit and then machine buffed with jewelers rouge for the nearly mirror finish. The blade just to the left of the refurbished blade is one that was cleaned up with the medium rust eraser. It needs more work and I’m still mulling satin, fine sanded look, polished finish or a mix. I’ll stick with my established methods for now and based on my experience with these erasers, I view them more as an higher priced somewhat limited traditional option at least for really rusty blades. Hope that helps!