The 9 mm Snap-Off Knife is rust resistant and has an auto-locking slider for blade adjustments.The integrated blade snapper ensures you'll have a sharp cutting edge without having to manually change out a blade.
Knife is great for general use, but can't handle a 11' foot drop off a roof. The plastic blade lock broke off after a fall making the whole knife useless. I'm still impressed with the knife and bought a new one to replace. Lesson, keep the knife off the roof.
Pros: Strong, like the quick break feature for a new edge