Mounting device for inserting insulation holders into insulation material, where the mounting device comprises a drive head adapted to drive the insulation holder through a central opening of the head portion of the mounting device, where the central opening is provided with a threaded portion, where the lead pitch of the threaded portion is at least 30 millimetres. The advantage of the invention is that insulation holders can be inserted into insulation material in an easy and cost-effective way. An insulation holder can be driven completely through the central opening since the insulation holder does not have a protruding head. The insulation holder is provided with a thread corresponding to the thread of the central opening, such that the insulation holder is screwed into the insulation material.

A hand tool for driving a fastener is provided. The hand tool includes gearing that interconnects a splined socket to a rotatable or trigger actuator and increases a rotational speed of the splined socket relative to the actuator. The hand tool may include a power tool receiver 38 or an independent motor to drive rotation of the splined socket to advance or retract a fastener from a threaded shaft. By increasing the speed and conserving rotational inertia, the hand tool reduces the time to secure a fastener on a threaded shaft. A rotatable nut is provided. The rotatable nut can slideably orient along a first axis and threadedly orient along a second axis to fasten to an adjacent surface.

A spiral ratchet driver with crank and slider mechanism comprises a spiral ratchet driver having a shank housing, a journal having a hole, connected to the shank housing by a screw, a ratchet mechanism assembly connected adjacent to the journal, a shank received in the shank housing and the ratchet mechanism assembly, a spindle having a spindle bearing connecting the second end of the shank to a chuck or a square drive, a lever connecting bar connected to the hole of the journal by means of a first rivet, a lever having a lever handle cushion grip, rotatably connected with the lever connecting bar, a handle bar having a handle bar grip on a free end, connected with the lever below the handle grip and connected with the spindle from a fixed end, a journal housing covering the journal, is connected with the handle bar and four or more bearing slides disposed between journal and the journal housing.

A spiral ratchet driver with crank and slider mechanism comprises a spiral ratchet driver having a shank housing, a journal having a hole, connected to the shank housing by a screw, a ratchet mechanism assembly connected adjacent to the journal, a shank received in the shank housing and the ratchet mechanism assembly, a spindle having a spindle bearing connecting the second end of the shank to a chuck or a square drive, a lever connecting bar connected to the hole of the journal by means of a first rivet, a lever having a lever handle cushion grip, rotatably connected with the lever connecting bar, a handle bar having a handle bar grip on a free end, connected with the lever below the handle grip and connected with the spindle from a fixed end, a journal housing covering the journal, is connected with the handle bar and four or more bearing slides disposed between journal and the journal housing.

A press type automatic screwdriver includes a press member, a drive link, a screwdriver bit, and a screw thread pair including a screw rack and a gear engaged with the screw rack. The press member and the screwdriver bit are secured to opposite ends of the drive link, the press member and the drive link are connected by the screw thread pair, and the screw rack is resisted by the press member. The gear is secured on an end of the drive link. When the press member is pressed, the press member pushes the screw rack, the screw rack drives the gear to rotate, the gear drives the drive link to rotate, and the drive link drives the screwdriver bit to rotate.

A press type automatic screwdriver includes a press member, a drive link, a screwdriver bit, and a screw thread pair including a screw rack and a gear engaged with the screw rack. The press member and the screwdriver bit are secured to opposite ends of the drive link, the press member and the drive link are connected by the screw thread pair, and the screw rack is resisted by the press member. The gear is secured on an end of the drive link. When the press member is pressed, the press member pushes the screw rack, the screw rack drives the gear to rotate, the gear drives the drive link to rotate, and the drive link drives the screwdriver bit to rotate.

A spiral ratchet driver with crank and slider mechanism comprises a spiral ratchet driver having a shank housing, a journal having a hole, connected to the shank housing by a screw, a ratchet mechanism assembly connected adjacent to the journal, a shank received in the shank housing and the ratchet mechanism assembly, a spindle having a spindle bearing connecting the second end of the shank to a chuck or a square drive, a lever connecting bar connected to the hole of the journal by means of a first rivet, a lever having a lever handle cushion grip, rotatably connected with the lever connecting bar, a handle bar having a handle bar grip on a free end, connected with the lever below the handle grip and connected with the spindle from a fixed end, a journal housing covering the journal, is connected with the handle bar and four or more bearing slides disposed between journal and the journal housing.

A spiral ratchet driver with crank and slider mechanism comprises a spiral ratchet driver having a shank housing, a journal having a hole, connected to the shank housing by a screw, a ratchet mechanism assembly connected adjacent to the journal, a shank received in the shank housing and the ratchet mechanism assembly, a spindle having a spindle bearing connecting the second end of the shank to a chuck or a square drive, a lever connecting bar connected to the hole of the journal by means of a first rivet, a lever having a lever handle cushion grip, rotatably connected with the lever connecting bar, a handle bar having a handle bar grip on a free end, connected with the lever below the handle grip and connected with the spindle from a fixed end, a journal housing covering the journal, is connected with the handle bar and four or more bearing slides disposed between journal and the journal housing.

A press type automatic screwdriver includes a press member, a drive link, a screwdriver bit, and a screw thread pair including a screw rack and a gear engaged with the screw rack. The press member and the screwdriver bit are secured to opposite ends of the drive link, the press member and the drive link are connected by the screw thread pair, and the screw rack is resisted by the press member. The gear is secured on an end of the drive link. When the press member is pressed, the press member pushes the screw rack, the screw rack drives the gear to rotate, the gear drives the drive link to rotate, and the drive link drives the screwdriver bit to rotate.

A press type automatic screwdriver includes a press member, a drive link, a screwdriver bit, and a screw thread pair including a screw rack and a gear engaged with the screw rack. The press member and the screwdriver bit are secured to opposite ends of the drive link, the press member and the drive link are connected by the screw thread pair, and the screw rack is resisted by the press member. The gear is secured on an end of the drive link. When the press member is pressed, the press member pushes the screw rack, the screw rack drives the gear to rotate, the gear drives the drive link to rotate, and the drive link drives the screwdriver bit to rotate.