Alpha Force Tanto Spring Assist Knife - Tophatter's Army Products & Self DefenseThis deadly blade is constructed of 3CR13 steel with a stone wash finish making it rugged and durable. The tanto style blade has an extremely strong point allows it to be used in tough situations where piercing hard materials is required. With a partial serration you can easily cut through rope when needed. The spring assisted mechanism locks up solid with a liner locking system. The handle is doubled walled and constructed of G 10 making this knife