A hand-held power tool, in particular an impact drill driver, has a gearbox assemblage, a hammer impact mechanism, and a tool spindle. The hammer impact mechanism includes a striker that at least partly surrounds the tool spindle in at least one plane.

A golf green hole-making device has longitudinal, radial, and angular directions, and includes a cutting cylinder, a structure, a weight, a weight propulsion device, a soil expulsion piston, a piston driving mechanism, and an expulsion activating mechanism. The cutting cylinder has an open end that is freely movable longitudinally. The structure includes a guide with which the weight engages to move along a weight path between first and second endpoints, when propelled by the weight propulsion device, causing the weight to strike the cutting cylinder and urge the cutting cylinder in the longitudinal direction. The soil expulsion piston moves inside the cutting cylinder along its axis. The piston driving mechanism transfers force from the weight propulsion device to the soil expulsion piston to drive the soil expulsion piston towards the open end. The expulsion activating mechanism engages and disengages the piston driving mechanism in relation to the weight propulsion device.

The self-contained force magnifying tool disclosed herein includes a tool portion, a striker, at least a portion of which is disposed within the tool portion, and a spring, a least a portion of which is disposed within the tool portion. The spring attaches to both the tool portion and the striker. When the striker is pulled by a user, the spring stores mechanical energy. When the user releases the striker, the striker impacts on the tool portion transferring the mechanical energy stored in the spring into a driving force. The force is magnified by a tool disposed on the tool portion of the self-contained force magnifying hand tool and applied to a workpiece.

A hand tool for carrying out at least the screwing/unscrewing and/or percussion operations for boring, marking or punching, in particular on assembling means such as screws, bolts or pins. The hand tool includes at least one body attached to a handle. A tool-carrier rod is provided for carrying an impression corresponding to the operation to be carried out. An integrated means is provided for imparting an axial percussion in the direction of the tool-carrier rod. According to the invention, a shock rod is provided inside the tool-carrier rod and is capable of longitudinal movement for directly imparting the percussion force to the impression.

A combination tool includes a surveyor's rod having a tubular body and a hammer that is slidable within the tubular body using an external handle. The tubular body defines an opening to insert a nail to be hammered into a surface below the tubular body. A nail-loading device may be affixed adjacent to the tubular body. The nail-loading device has a tube for receiving a nail and a lever arm that can be pivoted away from the tube to receive a nail and then pivoted back to its resting position to force the nail into the tubular body through the opening in the tubular body. A hammer-stop may be affixed to the tubular body to form a physical stop to the downward movement of the hammer. A handle lock may be employed along with a rod-tip point.

A power tool having a hammer mechanism includes a motor, a driving mechanism operably connected to the motor and configured to at least linearly drive a tool accessory along a driving axis, a tool body that houses the motor and the driving mechanism, an outer housing elastically connected to the tool body such that the outer housing at least partially covers the tool body and being slidable relative to the tool body in a first direction substantially parallel to the driving axis, a guide part configured to guide sliding movement of the outer housing relative to the tool body, and a handle including a grip part extending in a second direction, the handle being elastically connected at least to the outer housing and being movable relative to the outer housing in the first direction and in at least one direction that intersects the first direction.