The Ultratech is Microtech's top-of-the-line automatic knife, setting a new standard for OTF knives with its advanced technology and exceptional American craftsmanship. This particular Microtech Ultratech Out-the-Front Automatic Knife (Signature Series, All Black, Full Serrated D/E) features a 3.35" high-quality steel serrated dagger blade with a sleek black finish and specially designed porting holes to effectively expel water, dirt, and debris. It operates as an out-the-front automatic knife with a convenient thumb slide for easy opening and locking. The handles are made of durable black 6061-T6 aircraft-grade aluminum, with internal parts coated in nickel boron for added strength and longevity. It also includes a versatile ambidextrous stainless steel Signature Series pocket clip and a glass breaker for emergency situations. When closed, it measures 5.01" in length and weighs a mere 3.5oz. Rest assured, this knife is proudly made in the USA. Please note that the specific type of steel used in Microtech knives may vary depending on availability from suppliers. If you have any questions regarding the steel used in this particular Microtech product, please feel free to reach out to us.