The elegant Extrema Ratio BD4 Folder has a light thin blade—but longer than the average EDC—so the weight, size, and sharpness is ideal for tactical maneuvers. However, for those who appreciate a larger blade for regular use, this folder is a well-made everyday carry. The BD4 epitomizes the classic Italian style of knife, with the sleekness of a stiletto and the spirit, too, with Extrema Ratio's High Speed Razor Opening System. The light aluminum has deliberate machining for the knife user's secure grip. When it comes to a sharp folding pocket knife, the BD4 is a clear winner.
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