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Slot screw drives have a single horizontal indentation (the slot) in the fastener head and is driven by a "common blade" or flat-bladed screwdriver.This form was the first type of screw drive to be developed, and, for centuries, it was the simplest and cheapest to make because it can just be sawed or filed.
Xcelite was founded in 1921 by F. Birney Farrington (1886-1962), as the Park Metalware Company, Inc., a small metalworking shop in Orchard Park, New York. [2] John Zilliox’s (1874-1971) U.S. patent 1,386,217 for an adjustable wrench, launched the company into manufacturing hand tools for worldwide distribution.
CNET TV was composed of CNET Central, The Web, and The New Edge. [13] [14] CNET Central was created first and aired in syndication in the United States on the USA Network. Later, it began airing on USA's sister network Sci-Fi Channel along with The Web and The New Edge. [13] These were later followed by TV.com in 1996.
A nutdriver or nut driver is a hand tool for tightening or loosening nuts and bolts.It essentially consists of a socket attached to a shaft and cylindrical handle and is similar in appearance and use to a screwdriver. [1]
The trade name "Yankee" screwdriver was first marketed by North Brothers Manufacturing Company in ≈16 April 1895, with the No. ≠130 spiral ratchet screwdriver. Yankee soon became and still is a well-known name in automatic spiral ratchet screwdrivers , with several other models, and model improvements patented by North Bros. over a 40-year ...
Proper use requires that the screwdriver's tip engage the head of a screw of the same size and type designation as the screwdriver tip. Screwdriver tips are available in a wide variety of types and sizes (List of screw drives). The two most common are the simple 'blade'-type for slotted screws, and Phillips, generically called "cross-recess ...
A torque screwdriver is a screwdriver with components that ensure tightening to a specified torque, ensuring tightening which is sufficient, but not excessive. An insufficiently tightened screw connection may loosen in operation, and excessive tightening can damage parts; for example, if the nuts holding the wheel of a car in place are too ...
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