KEY THROUGH COIN TRAY MAGIC TRICK

Magician shows a box & pull his tray. Then he puts a coin on the tray & close it. Then he takes a plastic key & puts the key in the middle hole of the box. The plastic key magically is penitrating the solid metal coin. After removal of  the key from the box, magically when opens the box drawer the coin is intact as previous. No hole is in middle of the coin.