Bee Sting Double Sheath Black Titanium VersionBEE is a push dagger with a Bastinelli knife, a collaboration that is both stylish and very effective. This is a tactical knife that we hope will be used in Close Quarter Combat (CQC), and its design features are targeted at specific CQC needs such as fast, effective deployment, reliable cutting and penetration, low visibility profile, modular candy options , and robust structure. Blade material: M390 Hardness: 60 Blade thickness: 4mm Blade length: 6.