No. 380,
385, 387 Series
Steel Straight Edges
No. 380 Series
12-72" (300-1800 mm)
No. 385 Series
12-72" (300-1800 mm)
No. 387 Series with bevel and graduated edge
12-48" (300-1200 mm)
These straight edges are precision ground and
nicely finished to rigid Starrett standards. They are unexcelled for drawing
or scribing straight lines and checking surfaces for straightness. Their
thickness and design permit them to retain shape and accuracy, but still
be portable and easy to handle.
The No. 380 Series are not beveled or graduated. The No.
385 Series are beveled one edge, but not graduated. The No. 387 Series
has one edge that is both beveled and graduated in 32nds of an inch.
The No. 380 and No. 385 Series in sizes 36" and longer
are marked with arrows at two suspension points. If the straight edges
are brought to the work and used on edge, they should be suspended at
these two points to minimize deflection.
Most jobs involve the use of straight
edges in the flat position – and it is in this position that we
check most stringently.
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