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AS B294 PDF
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Plain setting rings for internal measuring equipment (inch series)
| Published by | Publication Date | Number of Pages | |
| AS | 01/01/1970 | 5 |
AS B294 – Plain setting rings for internal measuring equipment (inch series)
Covers rings for setting instruments used for precision measurement of internal diameters by two-point or three-point contact methods, in a range of diameters from 0.08 in. to 6 in. It establishes a series of blank sizes; defines material, its heat treatment and hardness; and specifies requirements for working surface with respect to finish and accuracy. Three grades of accuracy are provided for. For metric series rings see AS 1001.
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