This printable 12-inch ruler has 1/4-inch divisions. Free to download and print
Digital Clipart-colorful 12 Inch Rulers-printable-colorful-instant
How to Read a Ruler - Dr. Nick Cornwell.com
Flexible Ruler 4 Inch 0.1mm Scale PET Plastic Covered Film
Cut circles, semi-circles, and quarter-circles from 3 to 15-1/2 inches and every 1/2 inch in between. Cut a freezer paper template to the finished size and then cut the fabric 1/2 inch larger to add the seam allowance. Or, if you prefer piecing curves, cut out the background and the circles with the same ruler. The ruler slides easily over the fabric until pressure is applied.
Creative Grids Circle Savvy Ruler
Printable Ruler Template in Inches – Tim's Printables
Six-Inch Printable Ruler (Teacher-Made) - Twinkl
Double Scale: Our 12-inch plastic ruler comes with a double scale feature, featuring markings in both inches and centimeters. This makes it a versatile tool that can be used for a variety of applications, including drawing, measuring, and drafting. The dual scale also makes it convenient for international use. 12 inch scaled in 1/16 in one side and opposite side 30 centimeters scaled in millimeters. Numerals and graduations are sharply delineated.
Acrimet Ruler 12 Inches and 30 cm (Solid Assorted Color) (6 Pack)
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How to Read a Ruler - Inch Calculator