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Irwin was founded in 1885 in Martinsville, Ohio as the Irwin Auger Bit Company by Charles Irwin, a pharmacist. Irwin had bought the rights to a solid-center auger bit from a local blacksmith. [3] In 1924, another blacksmith, Danish immigrant William Petersen of DeWitt, Nebraska, invented the first locking pliers [4] and named them Vise-Grips. [5]
From top: Spade, brad point, masonry, and twist drills bits Drill bit (upper left), mounted on a pistol-grip electric drill A set of masonry drills. A drill bit is a cutting tool used in a drill to remove material to create holes, almost always of circular cross-section. Drill bits come in many sizes and shapes and can create different kinds of ...
Watts Brothers Tool Works is a tool manufacturer located in Wilmerding, Pennsylvania.They are known for manufacturing drill bits that can drill square holes, [1] [2] including blind holes, which cannot be made with other methods such as broaching.
In machining, a tool bit is a non-rotary cutting tool used in metal lathes, shapers, and planers. Such cutters are also often referred to by the set-phrase name of single-point cutting tool , as distinguished from other cutting tools such as a saw or water jet cutter .
Date/Time Thumbnail Dimensions User Comment; current: 23:55, 13 September 2017: 22 × 9 (7 KB): OgreBot (BOT): Reverting to most recent version before archival: 23:55, 13 September 2017
Citing the shrinking of an American industrial base, changes in technology and its specialization in those industries, Irwin's son, owner James Sagalyn, dissolved the company in August 2017, leaving one competitor working on the same technology, Badger Roll and Machine of Green Bay, Wisconsin to handle remaining customers, many in the Greater ...
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