Most "lifetime" warranties have an asterisk somewhere. The asterisk usually leads to fine print that says the lifetime of the product, not the lifetime of the person who bought it. Which is a very specific kind of dishonest, because the customer hears one word and the lawyer hears another.
Ours is meant the way the customer hears it. If the tool fails in a way that's our fault, we make it right. Forever. There's no asterisk.
What's covered
Manufacturing defects. Material failure. A bevel that splits because the grind was wrong. A handle that loosens because the screws weren't right. A pivot that wobbles because the tolerances drifted on our end.
What's not covered: sharpening (we'll do it cheaply, but it isn't free), abuse (don't pry car doors), and loss (we can't replace what you didn't lose to a defect).
Why we can promise it
Because we made the part. We CNC'd the billet. We pressed the pivot. We ground the bevel. We know what could fail because we know where every operation could have been off by half a degree, and we don't ship the parts where it was.
The warranty isn't a marketing tool. It's just the consequence of building things slowly enough that we don't have to be afraid of them coming back.