The Filson Titanium Frame-Lock Knife is This frame-lock knife is a dependable workhorse?ready for cutting tasks in the field or on the job. The premium S35VN stainless-steel blade boasts exceptional edge retention with the toughness to avoid chipping. The titanium handle is lightweight and extremely corrosion resistant. Since the locking mechanism has no moving parts to fail, its security and reliability is unmatched. The opening flipper is easy to use with or without gloves. Reversible pocket clip. Custom made for Filson. Limited edition.