Drafting Scales Four Bevel Rulers by Alvin 260 Series

The architects scales are graduated to the foot and the engineers scales are graduated parts per inch. The engineers scales are double numbered. This means they can be easily be read left to right and right to left. They are all 4 bevel scaled rulers, meaning there are graduations on all 4 edges of the ruler.



Four bevel scales Alvin 260 series are flat drafting rulers with two sets of graduations on each side. The profile of the scale has a double beveled edge. These scales are made of high impact white plastic and are available in lengths of 6” and 12”. The scales are have architectural graduated to the foot and engineering graduated in parts per inch. See the reference chart above for details on graduations

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