Key Folding Knife 1.5in 5Cr13MoV Blade Drop Point Black Stainless Steel Blade Silver. Always be prepared with the new Key knife. This is the first lockback of its kind. Open up your awareness. SOG loves the fact that sometimes they wish they had a pocket knife to clean our fingers cut a rope open a box sever a thread. Now we do always. SOG new key knife just might save the day unless of course you lock it in the trunk.