Ruler - Detectable: 24 Inch Ruler

PCB Engineering Ruler - 16cm - DFRobot DWG0014-M Botland - Robotic Shop

HARFINGTON Stainless Steel Ruler 24 Inch 60cm Metric English Ruler with Conversion Table Small Metal Ruler Set Straight Edge Millimeter Ruler Measurements Tools for Measuring Drawing

Fiskars® Acrylic Ruler, 6 x 24

WoodRiver - Stainless Steel Cabinetmaker's Rule - 12

What are some ways to measure length without a ruler or tape measure? - Quora

WoodRiver - Stainless Steel Cabinetmaker's Rule - 12

Online Ruler, Online Scale, Measuring Tape Online

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Empire® 27318 Stainless Steel Ruler

This ruler is constructed of stainless steel and features acid etched graduations to ensure maximum accuracy and durability. One side of the ruler is in inches, with graduations every 1/16 in. (every 1/32 in. up to 3 in. and every 1/64 in. between 3 and 4 in.); the other side is metric, with graduations every mm. (every half mm. up to 10 cm.). The ruler also has a handy conversion table (from inches to millimeters) etched into its back. The ruler is 36 in. long and 1 1/2 in. wide.

Pacific Arc 24 inch Stainless Steel Ruler with InchMetric Conversion Table