A good, quality machinist rule is an indispensable tool used by machinists, woodworkers, architects, draftsman, scientists, students, DIYers and more. The edges and ends have been ground parallel, straight, smooth and square.
Woodworking Machinist Ruler with Two Ruler Stops — Taylor Toolworks
Shinwa 24 Inch Rigid Stainless Steel Machinist Ruler English/Metric Graduations (1/64, 1/32, mm and .5mm) Satin Chrome Finish
Benchmark Tools™ Rigid 12 5R Satin Chrome Machinist Rulers — Taylor Toolworks
Fine Woodworking Issue 0020
Woodworking Machinist Ruler with Two Ruler Stops — Taylor Toolworks
TAYTOOLS 24 Machinist Ruler Rule 4R (8th 16th 32th 64th) Stainless Steel $17.99 - PicClick
Steel Rules - MSC Industrial Supply
300mm Mesure Ruler,TU-981-300mm Stainless Steel Ruler Measurement Tool Metric Markings for Woodworking Measure and Assistant Marking
2 Pack Stainless Steel Ruler Machinist Engineer Ruler, Metric Ruler with Markings 1/8, 1/16, 1/32, 1/64 Inch for Engineering, School, Office, Architect, and Drawing (12 Inch, 6 Inch)