A manually swingable hammer-type stapling tool having an elongate housing having a striker movably mounted thereon. A staple driving blade is mounted on the housing and movable relative to the striker along a staple discharge path when the striker impacts against a surface. A staple magazine is carried on the housing for containing a clip of staples so that a leading staple of the clip is disposed in a staple discharge path below the driving blade. A cap supply and feeding arrangement is mounted on the housing for positioning a cap in a discharge position wherein it is disposed below the leading staple, which arrangement includes a cap magazine containing a significant number of individual caps and inertia energy activated feeding mechanism for advancing a leading cap into the discharge position.
