I have actually looked at those Schmitz a few months ago(thanks for the reminder!), those are some darn nice pliers and cutters! It's hard to go with those when you can get Prime shipping for Knipex. I just wish Knipex offered all their electronics pliers in both serrated and smooth jaws, it would be nice to see them with comfort grips too. Unfortunately, because of this I have had to go to Williams(KAL is the OEM I believe) and Xcelite for my thin(and thinner), serrated needlenose...not that those are poor quality by any means but I like having brand consistency in my tool box/bag.
I've also heard Keiba(Japan) is fantastic. I personally can vouch for some of Engineer(Japan) pliers as well, their screw extraction pliers are excellent.
Before buying mine, I researched Knipex heavily. To my surprise, they're not as good.
The primary issue is with the hardening. For example, the teeth are too soft. And this was supported when I saw an independent Rockwell C test that showed they were only coming in at 42HRC rather than the 57HRC* or 62HRC** as advertised. There's also QC issues, such as the jaws not meeting properly in general, so that doesn't instill confidence IMHO.
They do apparently have really nice grips though.
But the real kicker for me, was free shipping or not with Amazon Prime, the Schmitz come in cheaper. Even after paying for currency conversion and shipping.
Please note, I'm talking about the box jointed versions or screw type lap joint (
example 1,
example 2,
example 3), not the red vinyl dipped versions in terms of cost. HUGE difference in the quality, and for pliers, you want a box joint (can handle the stress in multiple axis', unlike a lap joint = they'll last longer before getting sloppy).
Not pliers, but the stand-off cutters I have were made when they were still labeled as Made in W. Germany, so we're talking '91 at the latest (Schmitz, but labeled CK Tools). That's at least 25 years of use, yet there's zero slop in the joint. Divide that out, and the cheap stuff is not cost effective at all.
BTW, I started with green handled Diamond Calk and Horseshoe (aka Diamaloy) pliers and cutters as a kid (what they were before Xcelite bought them). Too small these days (end of the handle digs into the palm of my hands.
Another really good one I forgot, is
Swanstrom.
Ironically, the Swanstrom family owned Diamond Calk and Horseshoe before they sold it to Xcelite. Then the turned around and started Swanstrom Tools.
As it happens, my Swanstrom's are the largest pair I have, and I use them on steel leads without any issues. Paid all of $5.00 for them on eBay.
I've heard very good things about Keiba and Engineer as well (eyeing the thin jawed adjustable wrench). Koken (sockets), KTC (wrenches and other items), Nepros (ratchets), as well as some others too.
* ESD/Comfort Grip series
** Precision seriesSounds like you have some great stuff!
Picked up stuff as NOS and used at the right prices. Downside was it took 5 years to find all of it (there's some more specialized stuff in my collection that is rarely listed).
Only stuff I paid full retail on where the Schmitz, and I don't regret it.