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.
The hamstrings are the huge muscle group on the back of your thighs. They are the biceps of the lower body yet many people never work them. They are used during squats, but you should give them more attention with romanian deadlifts, stiff legged deadlifts, and pull thrus.