An combination center punch and prick punch impact hand tool 10 has a center punch member 14 with an elongated center punch body 16 extending from a tool tip 20 to an anvil surface 24 at a rear end 22. The hand impact tool 10 has a prick punch member 40 with an elongated forward end 44 having an anvil surface 46 for engaging the anvil surface 24. An elongated coil spring 60 has reduced diameter spring ends 64 and 66 mounted in corresponding spring latching grooves 28 and 54, respectively. Each of the members 14 and 40 have finger gripping sections 26 and 52 that are formed with a series of annular grooves 80 forming finger rings 82 for enabling the user to easily grip and hold the tool member 14 during the operation of the tool and the expansion of the coil spring prior to the release of the prick punch member 40. Upon release of the prick punch member, the anvil surface 46 of the forward end 44 is driven into the anvil surface 24 with a very sharp impact. The number of rings 82 in the finger gripping section 52 is less than the number of rings 82 of in the finger gripping section 26 to minimize premature release of the center punch member prior to the release of the prick punch member 40.

A tool which has spacer sleeves displaceable on a center punch and hollow shafts are adjacent to one another is intended for rapidly and precisely finding the center of holes and the longitudinal center of slots and channels, so that center marks and linear scribes can be made. The spacer sleeves and the hollow shafts have different diameters, and the hollow shafts are inserted one into the other in telescopic form. When a hollow shaft is fittingly inserted into hole (5) or slot (5) the center of the former or the longitudinal center of the latter can reliably be found by the center punch for making center marks or linear scribes in the slots. The tool can also be used for producing center marks on shafts and pins.

A device for punching holes in artificial fingernails comprising a piston-cylinder unit having a cylinder wall with an aperture in it extending across the whole of the cylinder. The aperture is banana-shaped in cross-section and wider than the internal diameter of the cylinder with the convex side of the aperture facing the piston. The pointed end of the piston has a sharp knife-edge. The hole punch is operated by holding it between the thumb and index and middle fingers and pressing, causing the pointed end of the piston to travel past the curved cylinder-wall aperture in which the artificial fingernail to be perforated has been placed.

An illuminated centerpunch designed to illuminate the area on a workpiece where a punch mark is to be made. The centerpunch includes a hollow, cylindrical-shaped main body. Attached to the proximal end of the main body is a replaceable striking cap. Disposed inside the main body is a bulb holding collar acts as a switch and which holds a plurality of bulbs. Attached to the distal end of the main body is a post assembly designed to hold a replaceable tip and the bulb holding collar inside the main body. Attached over the distal end of the main body and around the replaceable tip is an optical end assembly. The optical end assembly includes a ring plate with a plurality of radially, spaced-apart arms which extend distally and curve inward from the main body. Located inside each arm is a fiberoptic capable of transmitting light produced by the bulbs located inside the main body to a desired point on the work surface. Disposed inside the main body are batteries electrically connected to the bulbs.

A new Firearm Piercing Tool Attachment Device for attaching a piercing tool to a firearm having a cleaning port. The inventive device includes a body having a hollow section and a second section, the second section being receivable within the cleaning port of the firearm, a spring-biased pin disposed within the second section for removably attaching the second section to the cleaning port, and a plurality of retaining set screws for removably attaching the piercing tool handle to the hollow section.