Screwdriver is a tool used torque for tightening or loosening screws and bolts that hold the wood, plastic or metal parts of the screwdriver can be divided into three parts: the handle (Handle) used for the handle made of wood, metal or plastic shaft or axis (Shank). for torque transmission to the tip of the metal has a hexagonal or circular mouth or tip (Blade) is inserted or put into the grooves of the screws or bolts of metal mouth are two types of mouth four lobes (Phillip. ) and oral flat (flat) using a screwdriver with safety. Do the following: use a screwdriver to fit the mouth of the groove of the screw head. Or four radial grooves of the mouth, such as bolts, screw heads. A four-pointed mouth grooved flat head screws must be rounded, thick lips screwdriver to fit the grooves of the screw head .......... grip screwdrivers for right-handed. The right hand grip The left hand axis Then torque with the right hand The only left hand cradles If you're not using the wrench enables the user to erect a screwdriver. Or perpendicular to the screw head. To loosen the screw, turn the screw clockwise. And twist clockwise to the tightening torque screwdriver only. Do not press too hard, too, should not be considered a piece of the hand while using a screwdriver. It could be a hand , do not use a screwdriver as a damaged, broken or cracked shafts. Bent or twisted the screw a piece of wood to use iron hammer or drill the first mouth screwdriver and the screw heads must be no oil or grease, use a screwdriver to extract iron center or Jimmy prohibited. the hammer handle screwdriver Except screwdriver designed to hammer a screwdriver to check the power monitor circuit. The handle of a screwdriver, the insulation must not break or crack. And should not be used to check the circuit with the current HM high voltage must be cleaned after use and stored in a dry place. Without oil or grease using a power screwdriver, -----------------------------------------. --------------------------------------- 1. SCREWDRIVER is a simple tool for checking the object or the conductor. Or an electric voltage is present. And also monitoring appliances that are leaking or not with two. The operation of conventional power screwdriver to try. It consists of a fluorescent tube is connected to a high resistance value. The resistance has Limit the amount of power It flows through the fluorescent body and not a danger. If you have been touched with the fire. This will stop the fires. The electricity will flow from the tip of a screwdriver through the fluorescent-inch resistive arm body into the stands. The fluorescent light is illuminated when the voltage level up to coordinate fluorescent tubes to light three. Choosing SCREWDRIVER should suit the power to take the kind of power and voltage 3.1 kind of like DC DC (in the car) AC AC (with the light coming from the utility company) 3.2. Voltage must not be too high or low, if appropriate screwdriver with low voltage may hold good. It is not safe to feel a bit more time Leakage through touch, such as home electric power 200-250 volts, but use a screwdriver for voltage 80-125 V. etc. 4. Be careful not to finger touch. the bare screwdriver Always use an insulated screwdriver to a particular end user experience without having to be used with duct tape wrapped around it. This reduces or prevents accidental short circuit caused by the use of a screwdriver is not careful with five. SCREWDRIVER general home use. Usually a button above The clip or a pen. For giving the finger to stop the power flow through the body. The red neon stick up sixth. Using a screwdriver, try to light the way to the end of the touch object to be tested first. Then use your finger to touch the top or the clip to stop. And must not stand on the ground or insulated shoes. The fire may not make an interpretation that no leakage had seven. Every time you use Be very careful and keep in mind that there may be dangerous, such as a screwdriver may damage the internal short circuit or have only slightly touch 8. SCREWDRIVER unused for a long time. Neon resistor inside may be damaged or inactive (unlit) or digital light display may not work. So before using The screwdriver should test whether it is still valid. The test to know that the fire before the fire, such as a screwdriver, try to use the power of the test probe. Hole in the wall with only one room with the lights on at 9. I poked a screwdriver power screwdriver to be careful not to touch each other, the light is polarized, as a terminal simultaneous phase power pole or pole with a light touch. ground terminal or neutral, etc., especially in the narrow. That means a short circuit and cause a spark fierce shot into the face and eyes and may be deformed or disfigured so in situations where the electrode strip as open space or cabinet panel switches or outlets that open out. Not recommended for non-electricians working strictly 10. Do not try to repair or modify the screwdriver fire damaged a false sense as to change the resistance. Or the right of resistance, etc. 11. Do not use a screwdriver to try to experiment with electric lights that pressure. Or high voltage
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