Reshapes a razor-sharp cutting edge on any knife in seconds. Simply draw the sharpener over the blade 3-4 times and you are ready to go. Tungsten carbide V-shaped bits are set at a universal 22 degree angle for extreme sharpness. The carbide bits are removable and reversible for twice the life and can be easily replaced. The rubberized TPR handle ensures a safe, non-slip grip at all times.