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The Starrett 657S snug has two 1/4" (6.3 mm) holes to adapt Starrett 196, 650, and 651 series dial test indicators and 657Y indicator attachment for use with the Starrett 657X rod (not included),. A knurled thumb screw provides secure grip when making adjustments.
Test indicator gauges, also called gages, are precision instruments that measure short linear distances. They are commonly used for detecting deviations from tolerance limits, such as small variations in flatness or height of an inspected workpiece, and permit measurement in narrow grooves or small bores. A test indicator gauge consists of a ball-tipped contact point on a levered arm, also called a measuring insert, which pivots from a hinge point. The reading indicates the degree of angular displacement of the arm. Test indicator gauges are commonly used in manufacturing, machining, and mechanical engineering. Standard test indicators measure the displacement of the arm perpendicular to the axis of the indicator. Dial and electronic indicators are very similar to test indicators, except that the axis of measurement is parallel to the axis of the indicator. Test indicators can be analog, with a mechanical dial, or electronic, with a digital display. Some electronic models transfer the data electronically to a computer for recording and potential manipulation.
The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. The company, founded in 1880, is headquartered in Athol, MA.
Customer
Reviewed in the United States on August 5, 2023
good item
Kevin
Reviewed in the United States on July 27, 2023
Starrett parts work great.
tony goodthunder
Reviewed in the United States on October 1, 2023
Use every day
Mike S.
Reviewed in the United States on March 27, 2021
Still the best!!
harley comeaux
Reviewed in the United States on April 8, 2019
Exactly what I needed with quick shipping
Pavel Fernandez
Reviewed in the United States on April 25, 2018
Good product
Customer
Reviewed in the United States on February 27, 2017
Sometimes you need to use the small rods. And it can be really hard to find a good tight snug to fit them. I recently had to use some small, skinny rods due to very confined areas, and this snug was perfect for holding the small rods right where I needed them. Thanks to this little guy I no longer feel like I need the thicker rod all the time. I've found that a lot of the time the smaller rod will work just as well and get me the same results just as fast, and sometimes even faster.
Maggie K.
Reviewed in the United States on December 25, 2016
Basic which is good. Only one moving part so there is almost nothing to break. They are surprisingly sturdy and go very well with the 2" tall green army men.
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