Cold Steel 62RN 4-Max with CPM-20CV Blade. The 4-MAX was developed as a collaboration between Cold Steel and award winning custom knife maker Andrew Demko. It was produced with one clear goal in mind - to deliver a folding knife with the maximum strength and performance possible within a 4" blade limit. Bridging the gap between production knives and expensive custom offerings, the 4-Max is made to Andrews exact specifications and from the highest-grade materials. Its extra wide, drop point stonewashed blade is made from American made CPM 20CV steel, offering a near perfect balance between durability and edge holding performance. The 4-Maxs tumbled titanium liners and back spacers and Cool Grey 3-D CNC machined and bead blasted G-10 handle scales provide even greater degrees of strength! Equipped with the ground breaking Tri-Ad® locking mechanism, this knife is quite possibly the strongest production folder Cold Steel has ever produced! The 4-MAX has passed every one of their grueling and torturous shock and impact tests, and then gone on to easily hold over 800 lbs of free hanging weight - with no damage! If you are looking for a highly collectible mega-folder made with the specifications, tolerances and materials normally only found on a luxury custom knife, then your search is over! SPECIFICATIONS: --WEIGHT: 9.2 oz. --BLADE THICKNESS: 4.5mm --BLADE LENGTH: 4" --HANDLE LENGTH: 6" --HANDLE MATERIAL: Cool Grey G10 --BLADE STEEL / MATERIAL: CPM-20CV --OVERALL: 10" --ADDITIONAL FEATURES: ---Pocket / Belt Clip - Tip up right side ---Dual Thumbstuds ---Dual Titanium Liners ---Full Backspacer ---Tri-Ad Lock System Country of Origin: Italy