Abstract: A tacker for driving fasteners (11) into an object (14), which optionally consist of U-shaped staples or nails, has a driver (13) which in an ejecting motion ejects a fastener (11) and drives it into the object (14). Catches (19b) are arranged to prevent a nail (11) fed to an ejecting position from tilting to an inclined position which significantly deviates from the direction of ejecting/driving in. The catches (19b) are movable between a first position in which they extend into the path of the ejecting motion of the driver (13), and a second position in which they are moved away from this path against spring action. Each catch (19b) is formed don a tongue (19) which is punched in a plate (18) and bent to L shape, one L leg (19b) of the tongue extending perpendicular to the plane of the plate and forming the catch and the other L leg (19a) being positioned in the plane of the plate and forming a part which in a resiliently yielding manner supports the catch.