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 make up the primary muscle group responsible for straightening (extending) the hip and bending (flexing) the knee. It includes a group of 3 muscles along the back of the thigh that connect the pelvis to the leg. Hamstring injuries occur when excessive force is placed across the muscles.