Camillus MACHINE 6.75" Folding Knife with a Carbon Fiber + Aluminum handle and 420 Blade. 420 steel provides decent edge holding capabilities and fairly easy to resharpen, this steel is a good balance of the most desirable traits for knife steel.The steel is bonded with Carbonitride Titanium that resists rust and corrosion and is up to 10x harder than untreated steel so the blade stays sharper, longer. This knife features our patented Robo Quick Launch Linkage System. 3" Drop Point Blade. Lifetime Warranty.