---
product_id: 239457381
title: "The Authentic Pocket Engineer - Small Metal Engineering Ruler Protractor Compass Scale, Techie Graduation Gadget Multitool, Mechanical/Civil Engineers Gift, Metric Mini 3 Inch Tool- Genius Lab Gear"
brand: "genius lab gear"
price: "€ 25.56"
currency: EUR
in_stock: true
reviews_count: 13
category: "Genius Lab Gear"
url: https://www.desertcart.fi/products/239457381-the-authentic-pocket-engineer-small-metal-engineering-ruler-protractor-compass
store_origin: FI
region: Finland
---

# 3-inch precision ruler 5° angular protractor laser-etched stainless steel durability The Authentic Pocket Engineer - Small Metal Engineering Ruler Protractor Compass Scale, Techie Graduation Gadget Multitool, Mechanical/Civil Engineers Gift, Metric Mini 3 Inch Tool- Genius Lab Gear

**Brand:** genius lab gear
**Price:** € 25.56
**Availability:** ✅ In Stock

## Summary

> 🛠️ Engineer your success with precision in your pocket!

## Quick Answers

- **What is this?** The Authentic Pocket Engineer - Small Metal Engineering Ruler Protractor Compass Scale, Techie Graduation Gadget Multitool, Mechanical/Civil Engineers Gift, Metric Mini 3 Inch Tool- Genius Lab Gear by genius lab gear
- **How much does it cost?** € 25.56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/239457381-the-authentic-pocket-engineer-small-metal-engineering-ruler-protractor-compass)

## Best For

- genius lab gear enthusiasts

## Why This Product

- Trusted genius lab gear brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pocket-Sized Precision:** Carry a full engineering toolkit in your wallet—ruler, protractor, and compass all in one sleek 3-inch metal card.
- • **Built to Last a Lifetime:** Crafted from laser-etched stainless steel, this multitool resists wear and tear, ensuring your measurements stay sharp for years.
- • **Dual Metric & Imperial Scales:** Seamlessly switch between centimeters, millimeters, and inches for flawless measurements on any project or blueprint.
- • **Instant Engineering Reference:** Never pause your workflow—quickly access essential engineering formulas, unit conversions, and constants right at your fingertips.
- • **The Ultimate Gift for Tech-Savvy Pros:** Impress engineers, students, and makers with a stylish, practical gadget that screams ‘I mean business’—perfect for desks, pockets, and toolkits.

## Overview

The Authentic Pocket Engineer is a compact, credit card-sized stainless steel multitool combining a 3-inch ruler, 5° protractor, and compass. Laser-etched with essential engineering references and dual metric/imperial scales, it’s designed for professionals and students who demand precision and convenience on the go. Durable and portable, it’s the perfect everyday carry for engineers, architects, and DIY enthusiasts.

## Description

Buy The Authentic Pocket Engineer - Small Metal Engineering Ruler Protractor Compass Scale, Techie Graduation Gadget Multitool, Mechanical/Civil Engineers Gift, Metric Mini 3 Inch Tool- Genius Lab Gear: Drafting Tools & Kits - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: 10/10 would recommend for simple things. - 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.
Review: Useful, portable, no bulk! - This basic low-tech gadget has been great for me with the tasks I've needed it for: most-routinely taking small measurements of 3" or less, as an alternative to keeping a bulky tape measure on my belt (or in my pocket), causing my pants to 'droop' and/or my shirt to become untucked. The square corners are of course functional for measuring purposes, but are a risk of pocket-wear, depening on how one stores it. I use my wallet, or keep it in a small stack of other things, in my shirt pocket. I keep it in the included cardboard sleeve, and also in the included inner, clear-plastic sleeve. This is a bit 'fussy' trying to keep track of both the cardboard sleeve and the plastic sleeve, and trying to keep them 'nice'... in my routine tasks, I routinely have dealt with oil-covered metal, so gets a bit messy/problematic, especially when trying to put the card back in all the sleeves, lol. It would be a useful improvement, to have a single, durable plastic sleeve, of course only very slightly larger than the 'measuring-card' itself, i.e. with rounded corners, to improve 'stowability' Either way I like it and it has saved me the trouble of having to carry around a much bulkier tape measure.

## Features

- Credit Card-Sized Multitool for Engineers: This stainless-steel laser-cut pocket tool includes a straight-edge ruler, protractor, and a compass. From lab work to DIY projects, it’s the ultimate at-work companion. Metric or inches? No problem. Draft blueprints, calculate angles, and create precise drawings. Perfect for students, professors, engineers, and mechanics. Surprise your boyfriend, dad, or gadget-loving friends with a unique gift. An ideal stocking stuffer graduation gift.
- Packed With Engineering Reference Info: Never look up a basic engineering equation, physical constant or unit conversion again. It’s not just a ruler; it’s your quick-reference while in the field or on the job. Architects, carpenters, and electricians—slip it into your pocket to save time looking up conversions! It’s the ultimate tool for measuring, drafting, and fixing anything. A helpful, handy gadget for the cool dads, boyfriends, women engineers, or hobbyist husband who loves to tinker!
- For Precision Technical Drawings: Always be ready to take a quick measurement or sketch a new design accurately with the ruler, protractor and compass drawing tools. From construction sites to woodworking benches, this stainless-steel multitool is your centimeter, millimeter, mils and inches ruler with angular precision of 5 degrees. A must-have for engineering, architects, machinists, draftsmen, field engineers and practical nerds! Be quick to measure, cut, and work with precision.
- Never Outgrow It: Reference info stays useful for a long career, Give a professional, student or budding young engineer a unique, thoughtful and practical gift for homework to cutting-edge research. Ideal for tech-savvy students, teachers, and DIY enthusiasts. The perfect desk accessory and EDC gift for civil, mechanical, and electrical engineers. In the lab or the job site, surprise your boyfriend, dad, mom, lab mate or favorite engineer with something they will keep for years.
- Lasts for a Lifetime: The laser-etched solid stainless steel ruler, laser-cut protractor, and the laser-engraved reference info lasts forever. Whether you’re converting inches to millimeters, PSI to Torr, or measuring angles, it's an every-day carry pocket companion for a lifetime. Essential for ingenieros and ingenieras with both English and Metric system conversions! Surprise your engineering employees, manufacturing team, or quality control staff with an awesome corporate gift!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08M5SNYKZ |
| Best Sellers Rank | #29,404 in Office Products ( See Top 100 in Office Products ) #101 in Drafting Tools & Drafting Kits |
| Date First Available | September 5, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.06 ounces |
| Item model number | TPE001 |
| Manufacturer | Genius Lab Gear |
| Product Dimensions | 3.31 x 2.09 x 0.1 inches |

## Product Details

- **Brand:** Genius Lab Gear
- **Color:** Black
- **Graduation Range:** 1/16 Inches
- **Material:** Stainless Steel
- **Style:** functional

## Images

![The Authentic Pocket Engineer - Small Metal Engineering Ruler Protractor Compass Scale, Techie Graduation Gadget Multitool, Mechanical/Civil Engineers Gift, Metric Mini 3 Inch Tool- Genius Lab Gear - Image 1](https://m.media-amazon.com/images/I/61yczeuKpFL.jpg)

## Questions & Answers

**Q: What is the purpose of this stainless steel card?**
A: 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.

**Q: What reference information does it contain?**
A: 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.

**Q: How durable is this card?**
A: 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.

**Q: What technical drawing tools does this card offer?**
A: It includes a ruler, protractor, and angle drawing tools, making it handy for quick measurements and accurate sketches.

**Q: Who would benefit from receiving this stainless steel card as a gift?**
A: 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 10/10 would recommend for simple things.
*by R***T on December 29, 2025*

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.

### ⭐⭐⭐⭐⭐ Useful, portable, no bulk!
*by T***T on June 12, 2024*

This basic low-tech gadget has been great for me with the tasks I've needed it for: most-routinely taking small measurements of 3" or less, as an alternative to keeping a bulky tape measure on my belt (or in my pocket), causing my pants to 'droop' and/or my shirt to become untucked. The square corners are of course functional for measuring purposes, but are a risk of pocket-wear, depening on how one stores it. I use my wallet, or keep it in a small stack of other things, in my shirt pocket. I keep it in the included cardboard sleeve, and also in the included inner, clear-plastic sleeve. This is a bit 'fussy' trying to keep track of both the cardboard sleeve and the plastic sleeve, and trying to keep them 'nice'... in my routine tasks, I routinely have dealt with oil-covered metal, so gets a bit messy/problematic, especially when trying to put the card back in all the sleeves, lol. It would be a useful improvement, to have a single, durable plastic sleeve, of course only very slightly larger than the 'measuring-card' itself, i.e. with rounded corners, to improve 'stowability' Either way I like it and it has saved me the trouble of having to carry around a much bulkier tape measure.

### ⭐⭐⭐⭐⭐ very nice quality
*by A***R on June 28, 2025*

very nice quality

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-02*