Talk:Square (tool)
Add topicLatest comment: 5 years ago by 3142 in topic Incorrect process on basic accuracy test
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Incorrect process on basic accuracy test
[edit]Not a try square only the internal angle is calibrated so testing the outer edge of the blade is pointless. You can do that on an engineer's square where both the internal and external angles should be accurate but not on the square specified or illustrated. 3142 (talk) 14:29, 17 December 2020 (UTC)