While the term drill may refer to either a drilling machine or a drill bit for use in a drilling machine. In this article, for clarity, drill bit or bit is used throughout to refer to a bit for use in a drilling machine, and drill refers always to a drilling machine.
Hamstringing, the act of cutting these tendons cripples the animals and renders it unfit for warfare or work. In carrying out war operations, the Israelites humstrung the horses of their enemies; on one occasion Joshua was specifically directed to do so by the true God.
Hamstrings are tendons of the muscles of the back of the thigh. Hamstring muscles bend the knee and straighten the hip. Hamstring muscle injury is a common athletic injury. Most hamstring muscle and tendon injuries heal without surgery. The risk of hamstring injury can be reduced with a regular stretching program and exercises.