What is the purpose of this stainless steel card?

It serves as a practical tool for engineers and makers as an everyday carry gift, fitting in your wallet or money clip alongside credit cards or IDs.

What reference information does it contain?

It includes basic engineering equations, physical constants, and unit conversions that would normally be in the cover of a textbook. No need to grab your distracting phone while doing homework on on the job site.

How durable is this card?

It's entirely stainless steel and laser etched black enamel, so it won't wear down. The 0.5 mm thick laser-cut stainless steel can be bent with enough force but can easily live in your wallet or notebook for many years.

What technical drawing tools does this card offer?

It includes a ruler, protractor, and angle drawing tools, making it handy for quick measurements and accurate sketches.

Who would benefit from receiving this stainless steel card as a gift?

Professionals, students, and budding engineers in civil, chemical, electrical, mechanical, materials, nuclear, and aerospace will appreciate this unique and practical gift that remains relevant from homework to cutting-edge research.

Genius Lab Gear The Pocket Engineer - Wallet Engineering Ruler Scale and Unit Conversion Reference 3 inch

Genius Lab Gear The Pocket Engineer - Wallet Engineering Ruler Scale and Unit Conversion Reference 3 inch

Product ID: 413615775

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Details

Brand
Genius Lab
Colour
Black
Graduation range
1/16 Inches
Material
Stainless
Style
functional

📏3-inch stainless steel ruler

📐Protractor & angle drawing tools

⚙️10 physical constants & 7 equations

Description

🛠️ The ultimate pocket sidekick for engineers who never settle for less.

MULTI TOOL FOR MAKERS - Includes ruler, protractor, angle tools, and pipe diameter gauge for on-the-spot measurements and sketches.
WALLET READY PRECISION - Sized to fit perfectly alongside your credit cards for stealthy, everyday carry.
EXCLUSIVE BONUS CONTENT - QR code unlocks monthly updates and discounts—stay ahead in your engineering game.
BUILT TO LAST A LIFETIME - 0.5 mm thick laser-cut stainless steel with enamel coating resists wear and tear.
INSTANT ENGINEERING REFERENCE - Packed with essential physical constants, unit conversions, and quick formulas—no more digging online.

The Genius Lab Gear Pocket Engineer is a TSA-compliant, 3-inch stainless steel engineering ruler designed to fit in your wallet. It combines precision measurement tools—including a protractor and pipe diameter gauge—with quick-reference engineering constants, equations, and unit conversions. Crafted for durability with laser-engraved markings and an enamel finish, it’s the perfect everyday carry for professionals, students, and makers who demand accuracy and convenience on the go.

Specifications

ASIN	B08M5SNYKZ
ASIN	B08M5SNYKZ
Best Sellers Rank	#62,518 in Office Products ( See Top 100 in Office Products ) #331 in Rulers
Brand Name	Genius Lab Gear
Color	Black
Customer Reviews	4.7 4.7 out of 5 stars (618)
Customer reviews	4.7 4.7 out of 5 stars (618)
Date First Available	16 April 2021
Global Trade Identification Number	00860004040330
Graduation Range	1/16 Inches
Is Discontinued By Manufacturer	No
Item Dimensions L x W	8.4L x 5.3W centimeters
Item model number	TPE001
Manufacturer	Genius Lab Gear
Manufacturer	Genius Lab Gear
Material Type	Stainless Steel
Model	TPE001
Part Number	TPE001
Product Dimensions	8.41 x 5.31 x 0.25 cm; 30 g
Style Name	functional
UPC	860004040330

Reviews

A**I

Nice and compact. Bought 2 one for me and one for my engineering student child!!

21.10.2024

D**O

Muy práctica para llevar en la cartera.

6.08.2025

E**E

Perfect size and very sturdy. Will be used daily for work

26.12.2025

P**Y

Very inferior quality product

8.11.2025

R**T

Convenient for simple things. Good quality and functionality. The wallet size makes it easy to carry everywhere. Print is legible and it has a nice look and finish. The scale is easy to use.

29.12.2025

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Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

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