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  • 18" Combo "D" Rule - Inch/Metric/Deci/Pica
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18" Combo "D" Rule - Inch/Metric/Deci/Pica

6 customer reviews

List Price: $49.98
Price: $39.98 + $5.95 shipping
You Save: $10.00 (20%)
In Stock.
Ships from and sold by Schaedler Precision Rules.
  • 18 inch ruler
  • Standard and decimal inches
  • DTP Picas
  • Metric millimeters and centimeters
3 new from $39.98
$39.98 + $5.95 shipping In Stock. Ships from and sold by Schaedler Precision Rules.

Frequently Bought Together

18" Combo "D" Rule - Inch/Metric/Deci/Pica + Schaedler Ruler 46-DP - Set of 2
Price for both: $77.96

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Product Details

  • Shipping Weight: 0.8 ounces (View shipping rates and policies)
  • ASIN: B005FSL18W
  • Item model number: 18-IMP
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (6 customer reviews)
  • Amazon Best Sellers Rank: #69,538 in Arts, Crafts & Sewing (See Top 100 in Arts, Crafts & Sewing)
  • Product Warranty: For warranty information about this product, please click here

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Product Description

This rule contains 18 inches of all scales as described above (except Agates). And we've die cut interior slots to provide edge access to all four popular scales: Standard Inches, DTP Picas, Decimal Inches, and Metric Millimeters/Centimeters. The display includes Bullets, Bars and Ballot Boxes in a variety of sizes. And it can be very carefully cut into two separate 18" rules if you don't mind risking the sight of blood. Coated with a subtle greenish tinge.


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Most Helpful Customer Reviews

I have had these incredible rules for decades and, well, I've lost most of them. Happy as a pig in brown ink to have found these again on Amazon! So I can buy a replacement even though I've retired after 40 years of fussing with this stuff..

This particular rule has 4 scales. Inches and fractions, inches decimal (10.9" doesn't work accurately in fractions), metric, and DTP picas. I always cut my copy of this thing in two, splitting it lengthwise, so the scales were along an edge. That's a tip, folks!

DTP picas differ from traditional picas because traditional picas are a teeny bit larger, but decades ago when they were in the early stages of writing the PostScript page description language, the founders of Adobe and their co-conspirators (John Warnock, Charles Geschke, Doug Brotz, Ed Taft and Bill Paxton) decided to simplify their work and define an inch as exactly 72 points instead of the 72.27 points used traditionally.

This difference, which most of those in the printing industry didn't quite realize as of the mid-nineties, is why an 8-1/2" x 11" "page" came out just a little smaller than that when rendered in PostScript and output on an imagesetter (later a plate setter).

Thus a DTP Picas ruler was a great help to those of us who tilled the DTP vineyards decades ago helping to duplicate old stuff into the new world.

But more than that, this rule is so damn accurate that you can measure to finer than 1/100th of an inch accurately (if you have a magnifying glass!).

If you are in the printing business and still using an old hook steel rule, well....you are out of date a long ways.<G>
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I have used these for graphic design ever since college in the 80s. These are great translucent rulers, accurate and precise. Expensive, but worth it. Can be used on curved or irregular shapes. I use it everyday. I really like this larger 18" version as sometimes the 12" just is not long enough, especially on 11 x 17 spreads.
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By aCr on January 12, 2015
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I have always used this type of rulers for design because I want to be as accurate as possible. They are great, a bit pricey but will last a long, long time. I wish they had a 24" version. If there was something else that would be more precise as this is... i would buy it.
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