Machine-divided (not photoengraved) rules provide uniformity of line width and depth
Inspected to Starrett® Master Standards, which are traceable to the National Institute of Standards and Technology
Ground square on both ends
All rules under 1" width: Single row of inch figures
All rules 1" and wider: Double row of inch figures
No-glare satin chrome finish
Graduations: No. 4R - 8ths, 16ths, Quick-Reading 32nds and 64ths; End Graduations in 32nds