A tool suspension device has a base bracket having a front surface, a rail bracket and multiple clamps. The rail bracket is attached securely to the front surface of the base bracket has a mounting panel, two opposite rails and two opposite channels. The channels are formed respectively in inner surfaces of the rails. The clamps are mounted slidably in pairs on the rails and in the channels and each clamp comprises a fastener to hold the clamps securely in position, the pairs of clamps clamp a tool securely.