Published at Sunday, August 12th 2018. by Mona Horne in Screwdriver.
We will concentrate on the three mainstream screwdriver types that are in use for general purpose and in the automotive industry that are slotted, Philips and Pozidriv.
When using a slotted screwdriver it is always advisable to find the right size driver for the screw the tip of the blade should be the same width as the screw head and fit snugly in to the slot. If the wrong size is used the potential for slipping out of the grove in the slotted screw is greatly increased and you will damage or strip the screw head making very difficult or imposable to screw in or remove.
Screws were very hard to make before the industrial revolution. This is why door hinges somewhat of a luxury.
The screwdriver seems to have originated in either France or Germany in the late 15th century. The original name for this tool was screwturner or turnscrew. The earliest screwdrivers had pear-shaped wooden handles and were made for slotted screws. Screws were used in the 15th century for constructing screw-cutting lathes, for securing breastplates, backplates and helmets on medieval jousting armor. Screwdrivers developed over time as the development of screws evolved and improved.
Voltage and Intensity for the Current are important when choosing a cordless driver. The voltage for your future cordless power tool is directly related to the amount of usage. Choose low voltage power tool for rare usage and easy materials and higher voltage for professional, constant usage. The overall range is 3.6V(rare) to 12 - 14.4V(medium) to 24V(professional).
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