Published at Thursday, August 02nd 2018. by Lucy Ryan in Screwdriver.
Naturally, there is no such thing as a real sonic screwdriver-not yet anyway-but the item is clearly based on the ancient tool used for removing and tightening screws. The hand tool first made an appearance somewhere during the European Middle Ages and possibly in France or Germany. Both countries came up with a similar invention and there is no specific proof as to which of them could claim ownership f the invention. However, the humble screwdriver did more to revolutionize the tools industry than more or less any other tool in history. Initially, the screwdriver was borne out of necessity, when jousting was the most common 'sport' in Europe. In those days, armor plating was worn by the jousters, but the inconvenience of not being able to remove the armor between bouts caused someone to consider removable options. It was then that the screw was said to have been created. Up until then only nails were used in wooden furniture, with the exception of wooden joints, but armor had no comparable item to help disassemble it when necessary. Therefore, with the invention of the screw and therefore the screwdriver, it became possible to take off ones armor after each fight.
There are many different types of screws, and consequently many different types of screwdrivers, available today. The slotted, Phillips and Robertson screwdrivers remain the most popular. From minor household repairs, to major construction projects, the need for a good set of screwdrivers is apparent. It would be convenient to only require one type, but the variety of metal and wood screws available deem this impossible. If a screwdriver is not the correct size and type for the screw being used, it's very likely that the screw will be damaged in the process of tightening or loosening it.
There are many types of screwdriver available and in recent years many specialist drives have been developed such as Tri-wing, Torq-set and Hexalobular however you are unlikely to come across most of the specialist drives unless you are working in very specific industries.
The last type of improvised tri wing screwdriver is the melted BIC pen. This method works reasonably well for some types of screws, but is a very poor method for trying to remove tri wing screws. The basic method is to heat the end of a BIC ball point pen until the plastic is soft. Once the plastic is soft enough, the pen is pressed into the head of the screw and is held there until the soft plastic returns to its harder state. The result is a plastic mold of the screw recess. The pen is then used as a screwdriver. It is a weak screwdriver and usually can not handle the torque needed to remove the screws.
Screwdrivers are probably the most common tools used both for household and professional purposes. They come in a large variety of sizes from tiny jeweler's screwdrivers up, and are designed to match the large variety of screws available.
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