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General 520 precision adjustable trammel points tools
General 520 Precision Adjustable Trammel Points
Used on a beam 3/8"x3/4" or smaller and on any desired length.
Draw large circles and measure sizable distances with the accuracy of a divider.
Fine adjusting screw sets points accurately.
Points are removable and may be replaced.
Conform to government specifications GGG-T-661b.
