Every knife gets the same first look I'd give one on my own line: check the steel, check the tang, check for cracks or heat damage that can't be undone. Most knives that look 'ruined' are fine. Some aren't — I'll tell you honestly either way before anything starts.
Surface rust comes off by hand — no wire wheels, no power tools that generate heat and risk the temper. Electrolysis for the worst cases, then a slow hand-sand through the grits to get back to clean steel without stripping the character out of it.
Chips, cracks, and loose handles get fixed properly before any edge work starts. There's no point putting a beautiful edge on a blade with a hairline crack near the tang — I'll flag it, and either repair it or tell you it's not safe to bring back.
This is the part most quick fixes skip. I work through whetstones in stages — usually 220, 1000, 3000, then 6000 or higher — correcting geometry before chasing sharpness. A knife that's razor sharp but wrong-angled will still cut badly.
Migaki — the traditional hand-polish — brings the cladding pattern back to life on laminated blades and knocks the tarnish off carbon steel without a mirror-chrome 'new knife' look that vintage steel was never meant to have.
Wa-handles get re-oiled, re-pinned, or replaced entirely if they’re cracked — usually in magnolia, ho wood, or rosewood, with a horn or buffalo ferrule reset or renewed to match.
Every knife gets used before it goes back — usually by me, on the pass, on actual food. Paper-slicing tests look nice on camera but tell you nothing about how a knife handles a shallot. If it doesn't perform in a real kitchen, it isn't finished.
No wire-wheel buffing that generates enough heat to ruin a temper. No belt-sander "sharpening" that eats away the original geometry. No knife goes back out with a hidden crack near the tang because it looked fine after a polish. If a knife can't be revived safely, I'll tell you — and I won't pretend otherwise.
Every knife gets used, by me, on real food, before it's called finished. That's the actual quality control.