Six is the pliers, which are used in turning, bending, holding, and even cutting objects. It is composed of the pair of handles, the pivot and the head part jaws or edges. There are several types of pliers: the gripping pliers, adjustable pliers, cutting pliers, crimping pliers, rotational and the special purpose type. Seventh is the wrench, which is also known as the spanner. It is used to fasten or twist nuts. The most usual shapes are called open-end wrench and box-end wrench. Open-end wrench is made of two opposite U shaped openings while the box end wrench is with enclosed openings. Eight is the voltage tester used to test an electric flow current. An ideal voltage tester should be able to test a rate up to 500 volts. It is composed of a neon bulb with two insulated wires next to the bulb housing. Ninth is the clamp, which is used to fasten, hold, and secure a device when a force is applied. Clamps can either be temporary or permanent. In UK and Australia when the clamp is for permanent use, it is referred to as cramp. Tenth is the knife - another sharp edged hand held tool used for cutting. It consists of a blade and a handle. As a tool, it can be grouped into wood carving knife, utility knife, and electrician's knife. Wood carving knife is definitely used for wood and has short and thin blade. Utility knife is used to cut sheet materials like boxes. Electrician's knife is used to cut electric wires.
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