Midwest Tools Regular Straight-Cut Aviation Snip is a heavy duty aviation snip with a hardened cutting edge that outlasts all others. The hot drop forged molybdenum alloy steel blades are virtually unbreakable with long lasting edge life. The unbreakable double overwind spring is guaranteed forever. The heavy gauge steel handles maximize force into cutting power at blades. The soft & durable copolymer grips won't twist or wear through. The ergonomically optimum 5.5", 140mm handle opening allows for full length to point cuts up to 18 gauge CRSM or 22 gauge SSSM with less than 80 lbs, 36 kg of hand pressure. The blade serrations per inch 2.54cm grip without slip or scar. The grade 8 hardened center pivot bolt threaded into back blade maintains adjustment for optimum cutting. The product comes with a limited lifetime warranty against manufacturers defects in workmanship.