Other brands of tweezers (Channellock, Klein, Irwin) just don't last as long. Knipex is made of higher steel. I work 80 hours a week making rebars and they last about 4 months (compared to <1 month for other brands!). Knipex HIGH LEVERAGE clippers are hard to find in North American stores. A few wear them, but usually not high level, and if so, most sizes/styles are often unavailable. Ordered from Revain, got the right size and grips, saved $20.