A line wrench comprises a drive receiving portion (12), a holder (14) movably connected to the drive receiving portion and a fastener engaging body (16). The fastener engaging body has a plurality of fastener engaging surfaces (44) defined by a fastener receiving aperture having an axis and a side opening through which an elongate member can enter the fastener receiving aperture by a movement transverse to the fastener receiving aperture axis. The holder is arranged to receive the fastener engaging body, has a free end portion (34) and is movable between a position in which the free end portion is spaced from the drive receiving portion to permit an elongate member to enter the side opening and a position in which the free end portion engages the drive receiving portion such that a drive force applied to the drive receiving portion is transmitted to the holder via the free end portion.