Abstract: A hand-held tool for pulling the inner cylinder from a tubular lock that has become inoperative. The tool comprises a cylindrical housing carrying a threaded main shaft which has a front segment with resilient fingers. The fingers are radially compressible for insertion into the annular key passageway of the lock whereupon the fingers return to original condition and have tips that engage the inner rim of the lock cylinder. A second shaft is slidable within the main shaft and carries a locking cup that retains the inserted fingers in the rim-engaging condition. A threaded nut on the main shaft is rotatable manually and with a wrench or the like to withdraw the main shaft and forcibly pull the inner cylinder from the lock.