The Microtech 123-4 Tanto Ultratech Automatic OTF Knife Satin Plain Edge. This Knife Features an M-390 stainless steel Tanto Edge blade with a plain edge and a satin finish. The new "contoured handles" texture thumb slide, tri-angle hardware, and an a glass breaker tip. pocket clip, come with black tactical hardware. This model features the tri-wing screws on the handle.