You can find a set of the Lindstroms on ebay for cheap, I recently replaced mine for $28 bucks new...
Origin Story of Why....
I was buying new flush cutters every 2-3 days and at $5-$13 bucks a pop, it got expensive...just to have sharp cutters. After a day or 2 the Flush Cutters would dull, break jaws off them, or have large gouges out of them and then you could only use small parts of the jaws to cut wire with, most of the time this would cause issues with larger wire-destroying some of the wires I finished.
So I got a pair of Lindstrom Cutters for $70 and I was reluctant to try them but I did end up getting them. They are made from Ball Bearing Steel hardened to HRC62....which is stronger then raw tungsten...It will last much longer and is extremely wear resistant...there still isnt a mark on the jaws of my dull set and Ive cut 4 metal coat hangers to prove their cutting power....not a scratch.
Ive had the Lindstroms for over a year before I thought they could be sharpened and I tried sharpening them myself following a tutorial and I made them very dull, useless....so I had to get a new pair.
The thing is, these things lasted me a entire year and you guys know how much I build...all the cutting with my normal routine on top of the Wholesale Aliens I was doing for AVS for almost 6 months...So 20-30 Staggerton Variants + 3-400 Aliens and other wires per week for a straight 6 months. They would have probably lasted a couple more years before they couldnt cut a piece of Ribbon or thinner wire easily or feel dull like normal cutters did in days....
You can get Tin Snips or other larger cutters for cutting wires and leads before install but if you want a real flush cutter that cuts through just about anything like butter with a satisfying "clip" feel and sound then the cutters Im obsessed with are in order.....If you want to sve about $10 over the Lindstroms on Ebay then buy some Tin snips.
The Page I got my cutters from for $28:
LINK