Blade Restoration

Bring old blades back to life without grinding away their history.

Restoring an old knife is a different challenge than finishing a new one. You're dealing with rust, pitting, heat discoloration, worn edges, and years of neglect — but you also want to preserve the blade's original geometry and character. You need to remove damage without removing too much steel.

This is where Cratex's cushioned cutting action earns its reputation. The rubber bond removes surface corrosion and discoloration without aggressively grinding into the steel below. You can clean up a blade that's been sitting in a drawer for decades and bring it back to a usable, attractive condition without losing the profile that makes it what it is.

For serious restoration work — deep rust, heavy pitting — start with Coarse grit and work through the progression. For lighter cleanup — surface rust, storage marks, minor scratches — skip straight to Medium or Fine.

Recommended Products

Cratex Large Wheels — $45.00

For full-blade restoration on your bench grinder. Coarse grit wheels remove surface rust across the entire blade quickly and evenly. Follow with Medium and Fine for progressive cleanup.

Cratex Mini Block Kit No. 128B — $58.28

Hand finishing blocks for controlled, detail-oriented restoration work. Ideal for old knives where you want to work slowly and preserve original blade geometry.

Cratex Cones (Box of 100) — $89.00

For cleaning rust and buildup from inside guards, choils, and recessed areas on vintage knives.

Cratex Mini Point Kit No. 167 — $58.28

For detail cleanup on tangs, guard junctions, and pivot areas on folders.

Pro Tips

  • Start gentler than you think you need to. You can always move to a coarser grit — you can't put steel back
  • Use blocks by hand for the most control on valuable or irreplaceable blades
  • Cratex sticks are excellent for cleaning corrosion from blade fullers (blood grooves)
  • For blades with maker's marks or engravings, work around them carefully with points

Working on jewelry? Cratex is equally effective for restoring vintage jewelry, cleaning up estate pieces, and removing tarnish from precious metals. See the Jeweler's Guide →