set Laroy S. Starrett invented and patented the first
combination square in 1878. Two years later he founded the Starrett corporation in
Athol, Massachusetts, as L.S. Starrett Company to produce it and other precision tools. In 1882, Starrett traveled to London and Paris to appoint sales representatives. In 1887, Starrett acquired further patents. In 1890, L.S. Starrett patented an improved micrometer. During the same year Starrett began making and improving saw blades, and continues to be a major manufacturer as of 2015. In 1895 Starrett patented the divider with a
trammel. In 1920, the company added its first gauge to the product line and quickly became the world's largest innovator and maker of precision calibrators. During World War II Starrett increased its production 1941-1945 by 800% and won the
Army-Navy "E" Award. At the same time, more than 400 employees went into the US armed forces. Starrett opened a factory in
São Paulo, Brazil, in 1956, moved 100 km in the early 1970s to
Itu. In 1958, a plant was opened in
Scotland, which currently makes products for the European and Asian markets. In 1962, Starrett acquired the Webber Gage Company, a maker of
gauge blocks. In 1970, Starrett took over granite product maker Herman Stone Co., relocating production to a new plant in
Mount Airy, North Carolina, in 1985 that also makes saws and measuring equipment. In 1986, Starrett took over the Evans Rule Company, the world's largest tape measure manufacturer, and in 1990 the company bought Sigma Optical, a British manufacturer of optical profile projectors. In 1998, Starrett expanded into China, opening a new plant in
Suzhou. In 2002 allegations of fraud were made against Starrett over its RapidCheck Coordinate Measuring Machine. A Federal investigation found none and no charges filed. In 2006, L.S. Starrett Co. purchased Tru-Stone Technologies Inc. in
Waite Park, Minnesota, a maker of custom-engineered granite machine bases, for $19.8 million in cash. In March 2024, with Douglas A Starrett as its President and CEO, L. S. Starrett Co. announced that it would be acquired by
private equity firm
MiddleGround Capital. On June 5, 2024, L. S. Starrett Co. announced that it had completed a merger with an affiliate of MiddleGround and became a privately held company. This happens after it ceases to be publicly traded on the New York Stock Exchange from May 22 as NYSE:SCX. ==Gallery==