Blue Viper Ball Bearing Spring Assisted D2 Steel Tanto Blade Pocket KnifeThe 3. 5 mm thick modified tanto style blade is made from high quality D2 steel. Why does this matter, you ask? Trust me, it makes all the difference. D2 is a steel that is high in chromium and provides high wear resistance as well as exceptional toughness and hardness, and this D2 blade has been given a sand finish for even better scratch and wear resistance. Youll be blown away at how effortlessly this knife cuts. The handle features a double wall