The crow bar is a metal round or flat bar of approx. 25-105 cm, with a slightly curved split end, the claw, to pull out nails. The internal edges of the slit are usually chamfered for easier nail grasping. The bottom end of some large models is curved C-shaped to pull out longer nails. The other end of the crow bar is often forged flat to break open boxes.
The Japanese crowbar (Japanese: kajiya) differs in shape from the western model. It has two right-angle claws. On the curved side there is a flat striking surface on which one can hit with the hammer.
To remove nails, the upholsterer and shoemaker use a small crow bar, the pin lifter with wooden handle. The furrier uses a comb-shaped tool.
The crow bar can be distinguished from the handspike and the pinch bar.
See also crate axe.