Abstract: Device for screwing and unscrewing bolts/nuts including a lever, two jaws mounted between two side plates, with spacers guiding and holding the components together, the lever rotates a certain angle around an axis moving the two jaws inward to clutch the bolt head/nut or outward to release the bolt head/nut.

Abstract: Device for screwing and unscrewing bolts/nuts, comprising a lever, two jaws mounted between two side plates, with spacers guiding and holding the components together. The said lever rotates a certain angle around an axis moving the two jaws inward or outward. When move inward the jaws clutch the bolt head/nut and when move outward the bolt head/nut is released. The screwing or unscrewing is done without retracting the device out of the axis of the bolt/nut. The device is much more suitable when used for threaded fittings along the pipes or cable connectors like those for coaxial TV cable.

Abstract: Tape measure end hook for eliminating error in plane surfaces measuring. The tape measure end hook consists of a slidable hook composed by two pieces attached by rivets to the end of the metallic tape measure for more accurate when measuring the dimension placed in/on plane surfaces. The metallic tape has the apertures for rivets shaped that the strained end of the rivets not exceed the bottom/lower surface of the tape for eliminating snagging on a work piece.

Abstract: The tape measure end hook consist in a slidable hook composed by two pieces attached by rivets to the end of the a metallic tape measure for more accurate when measuring the dimension placed in/on plane surfaces. The metallic tape has the apertures for rivets shaped that the strained end of the rivets not exceed the bottom/lower surface of the tape for eliminating snagging on a work piece.