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.
A hamstring injury is a strain or tear to one or more of the three large muscles at the back of the thigh (or their tendons at the back of the knee). It is a common and painful sports injury, particularly in exercises involving running and jumping, or with sudden stopping and starting.