If you're looking into the durability of the Klein Tools D213-9ST High-Leverage Ironworker's Pliers, they generally have a good rep for being solidly built and dependable.
They're particularly focused on comfort and efficiency, which is helpful for tough tasks. One feature that gets mentioned a lot is the self-opening spring—it makes things a bit easier when you're cutting or twisting wire repeatedly.
According to the manufacturer's product description, this spring is meant to cut down on hand fatigue by reopening the pliers automatically after each cut. This could be really handy if you’re using them a lot during the day.
Plus, the high-leverage design—with its rivet placed closer to the cutting edge—offers up to 46% more cutting power than regular pliers. So, dealing with soft annealed tie wire is more straightforward and effective.
Still, during our research, we did come across some feedback about the spring's durability. A few people pointed out that it might bend or even pop off after heavy or extended use.
These issues don't seem widespread, but they're worth noting since it means the spring has some downsides despite its user-friendly benefits.
If you ever run into problems with the spring, it might be worth reaching out to the manufacturer or retailer for some help or maybe a replacement.
Overall, it looks like most folks find the spring feature really helpful for easing strain during extended use.
In the end, the general consensus is that these pliers hold up well for professional use. They make repetitive tasks less tiring and more efficient, which can be a big win in your toolkit.
If durability and functionality are what you’re after, these pliers could be a pretty solid option based on what we've found.