Triangular scale delivers the precision and versatility engineers require.Three sides with six different scales.Full divided: 10 20 30 40 50 and 60 parts to the inch.White plastic. more
A tool for reading computer printouts Center section isolates and magnifies the data so the likelihood of error is reduced. Scales correlate with horizontal and vertical printout columns. Ruled in 1/16 1/10 and 1/6 increments and in millimeters. more
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