The Hinderer XM-18 FATTY Folder is a Gen 6 model that has the beefy blade thickness of the XM-24 on the XM-18 frame. This XM-18 FATTY features a 3.5" S45VN stainless steel Wharncliffe blade, .185" thick, with Hinderer working finish. The blade has a notched thumb rest for secure purchase, a press fit 1/4" diameter ambidextrous thumb stud that locks up against the frame for superior strength against sideways torque, and an F (for FATTY) marked flipper for opening. The ergonomic handle, 4.75" closed, has the innovative Tri-Way Pivot System that enables the end user to switch between nylon teflon, phosphorus bronze and ball bearing pivot as needed or preferred. The non lock side has a .050" thick titanium liner and a textured black G10 scale for secure grip, a CNC machined stonewash 6AL4V titanium back, frame lock and Hinderer Lockbar Stabilizer, open frame construction with large standoffs for strength and ease of cleaning, a lanyard hole and an end to end reversible pocket clip. The Hinderer XM-18 FATTY Folder with 3.5" Wharncliffe blade has an overall open length of 8.25", and it weighs 5.8 ounces. Proudly made in the USA.