Maxpedition FRMLCKL Excelsa Large Framelock Folding Knife with D2 Blade and Titanium Handle Durable and Sleek Framelock Folding Knife with D2 Tool Steel Blade & Titanium Handle D2 tool steel with cryo heat treatment to 58-60HRc Full height flat grind for optimal edge geometry 6Al4V Titanium alloy handle and locking slab Unique concealed lock over travel limiter mechanism with Stainless steel ramped thumb stud