*Some regions of the USA and world are still experiencing shipping delays due to COVID-19.

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The Pocket Engineer - Wallet Ruler and Conversion Reference

Regular price $11.50 Sale

Your every-day carry engineering scale ruler and pocket reference to save you time, sharpen your drawings and take precise measurements in the field, in your lab, or on your homework.

Packed with features in laser-cut stainless steel the size of your credit card:

  • 26 unit conversions, 7 equations and 10 physical constants to save you time looking up references.
  • Doubles as ruler, arc drawing and angle measurement tool.
  • Photogrammetric ruler to calibrate length and tilt in images when used as a scale in field or lab work.
  • Pipe inner diameter measurement from 0.25"-1.25" and machinist scale with 10-mil resolution.

Free shipping, free returns. 

Free shipping in the USA! Typically arrives in 5-15 days in the USA, 15-30 days internationally. Expedited shipping available for less than $2 in USA.

Still not sure if you want one? We offer free returns of this product within 30 days of purchase if you're not happy with it! Grab it today with no risk and feel the difference yourself.

Bulk classroom discounts and group customization available by request

Customer Reviews
5.0 Based on 1 Reviews
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My brother loved it!

I got this as a Christmas gift for my brother, who is an engineering student with a current internship. He absolutely loved it! He told someone else it was his favorite gift this year. He's excited to have so many tools and constants available in his pocket when he's at work or doing homework. Quality is great too--super durable and legible. I may have to order the Pocket Scientist for myself as a fieldwork tool.