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The Pocket Engineer - Wallet Ruler and Conversion Reference

Always be ready to measure, calculate and fix anything with The Pocket Engineer. 

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 in mechanical, civil, electrical, industrial, nuclear, and materials engineering.
  • Doubles as a wallet ruler and protractor.
  • 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.
  • Here's how to use me!


Shipping times & rates

We ship to Canada, the UK, EU and many other countries around the world. Go to checkout to see the rates and availability for your region.

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 Orders

Bulk classroom discounts and group/logo customization are available by request. Bulk pricing starts at 10 cards and custom logos start at 100 cards.



Customer Reviews

Based on 57 reviews
98%
(56)
2%
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M
Michelle Modelsky
Great customer service

I received the wrong order, easy mistake. When I got in contact with them they replied the same day and had the correct item shipped out to me the next day. My husband was extremely happy with his birthday present.

M
Mary Wells
Clever & sturdy

The sturdiness is great and so many ways to use it. Really clever.

J
Jose Acosta
Love it

Great!

D
Donovan Baca

Great tool

J
Jessica Cordell
Amazing!

These tools are really well made and were a huge hit with engineering students and professionals alike. Would definitely purchase from Genius Lab Gear again!

Carbon-neutral shipping with Shopify Planet
Carbon-neutral shipping on all orders
4500kg
shipping emissions removed
That's like...
11519
miles driven by an average gasoline-powered car