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In 1878 Laroy S. Starrett invented and patented the first combination square, [4] and in 1880 he founded the L.S. Starrett Company in Athol, Massachusetts, in order to produce it and other precision tools. In 1882, Starrett traveled to London and Paris to appoint sales representatives, thereby starting up the international marketing of his ...
Though some earlier 19th century tools were called combination squares, the modern combination square was invented in the late 1870s by American inventor Laroy S. Starrett, and patented in 1879. [note 1] [8] In 1880 he founded the L. S. Starrett Company in Athol, Massachusetts, United States. The tool was originally designed for machinists, but ...
A surface plate is a solid, flat plate used as the main horizontal reference plane for precision inspection, marking out (layout), and tooling setup. [1] The surface plate is often used as the baseline for all measurements to a workpiece, therefore one primary surface is finished extremely flat with tolerances below 11.5 μm or 0.0115 mm per ...
Diagram of a micrometer showing a measurement of 7.145 mm ± 0.005 mm A micrometer is composed of: Anvil : The shiny part that the spindle moves toward, and that the sample rests against.
A single tool might be referred to as a caliper or as calipers — a plural only (plurale tantum) form, like scissors or glasses. Colloquially, the phrase "pair of verniers" or just "vernier" might refer to a vernier caliper. In loose colloquial usage, these phrases may also refer to other kinds of calipers, although they involve no vernier scale.
Senate Majority Leader Chuck Schumer has requested that "special detection systems" be deployed in New York and New Jersey after recent drone sightings fueled anxiety among residents in the region
In March 1963, Stanley Tools introduced the PowerLock tape measure series. [20] It was the first to use a molded ABS case, thumb actuated tape lock, and riveted end hook. By 1989, Stanley was producing more than 200,000 tape measures every day. [21] The first commercialized Digital Tape Measure was released by Starrett in 1995 under the ...
A 43-inch R2-D2 unit, crafted from parts used during the original trilogy, recently sold at auction for an incredible $2.76 million — far surpassing its $2 million pre-sale estimate.