---
product_id: 110451749
title: "Mr. Pen- Professional Metal Compass Set, 7 pcs, Precision Drafting Compass with Extension Leg, Pencil Holder, Extra Lead & Needles, Geometry Tool for Drawing Circles, Math, Engineering & Design"
brand: "mr. pen"
price: "€ 19.74"
currency: EUR
in_stock: true
reviews_count: 11
category: "Mr. Pen"
url: https://www.desertcart.hr/products/110451749-mr-pen-professional-metal-compass-set-7-pcs-precision-drafting
store_origin: HR
region: Croatia
---

# Up to 18-inch circles Precision push-button lock Includes spare parts kit Mr. Pen- Professional Metal Compass Set, 7 pcs, Precision Drafting Compass with Extension Leg, Pencil Holder, Extra Lead & Needles, Geometry Tool for Drawing Circles, Math, Engineering & Design

**Brand:** mr. pen
**Price:** € 19.74
**Availability:** ✅ In Stock

## Summary

> 🎯 Master every curve with pro-grade precision!

## Quick Answers

- **What is this?** Mr. Pen- Professional Metal Compass Set, 7 pcs, Precision Drafting Compass with Extension Leg, Pencil Holder, Extra Lead & Needles, Geometry Tool for Drawing Circles, Math, Engineering & Design by mr. pen
- **How much does it cost?** € 19.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/110451749-mr-pen-professional-metal-compass-set-7-pcs-precision-drafting)

## Best For

- mr. pen enthusiasts

## Why This Product

- Trusted mr. pen brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lock-In Accuracy:** Quick push-button adjustment prevents any unwanted leg movement, locking your measurements securely.
- • **Ready for Anything:** Comes with 10 extra leads, spare needle, screws, and screwdriver—all packed in a sleek reusable pouch for on-the-go convenience.
- • **Trusted Quality & Support:** Premium metal build backed by lifetime satisfaction guarantee and responsive 24-hour customer service.
- • **Draw with Unmatched Precision:** Spring bow head and center wheel ensure flawless, stable circles every time.
- • **Versatile Large-Scale Drawing:** Extension beam lets you create circles up to a massive 18 inches in diameter—perfect for professional drafts and art projects.

## Overview

The Mr. Pen Professional Metal Compass is a durable, precision-engineered drafting tool designed for geometry, art, and technical drawing. Featuring a spring bow head, push-button lock, and an extension beam for circles up to 18 inches, it includes a full spare parts kit and comes in a reusable pouch. Highly rated for accuracy and build quality, it’s a must-have for professionals and enthusiasts seeking reliable, large-scale circle drawing.

## Description

desertcart.com : Mr. Pen- Professional Metal Compass Set, 7 pcs, Precision Drafting Compass with Extension Leg, Pencil Holder, Extra Lead & Needles, Geometry Tool for Drawing Circles, Math, Engineering & Design : Office Products

Review: Excellent, Solid, Precise..... - 1. Was concerned when I read some reviews that said some screws were stripped. Actually they are NOT stripped, but free wheeling. In order to tighten, place a finger on the UNDERSIDE of the screw when tightening. Problem solved 2. I was concerned when I read that the protractor "wobbled" when the extension was attached. Only if it is NOT fully inserted into the slot and SECURED by the screw, If the screw is not secured by the above method, then it will wobble, otherwise NO problem. Works like a charm! 3. Only complaint is NOT enough information provided by the supplier. The "cute" included mustache isn't so cute when you have to solve the problems yourself and the "cute" video FAILS !
Review: Great for Nautical Charting Class! - I needed a reliable divider for a U.S. Coast Guard Charting/Navigation Course, and this tool did the trick. Super sturdy, reliable (in a classroom situation), and seems like it would be pretty durable (in a non-saltwater environment). The price and quick Prime shipping is what set Mr. Pen apart from their higher priced competitors, so I took a chance, and I’m glad I did. Definitely a great balance between price and value — I recommend this product. :)

## Features

- Professional Compass With Universal Adapter, Extension Beam For Math, Geometry, Art, Drafting And Drawing, Creates Circles Up To 18 Inches In Diameter
- Precision Geometry Compass With Spring Bow Head And Center Wheel Accompanied Quick Setting Adjustment With Push Button
- Mechanism Prevents Unintentional Leg Movements
- Premium Quality, Life-Time Satisfaction Guaranteed 10 Extra Lead, Spare Needle And Screws And Screw Driver Packaged In A Clear, Reusable Pouch. Easy To Carry And Store
- Quality assurance, please feel free to give us feedback, we will get in touch with you within 24 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MJVSB7D |
| Best Sellers Rank | #27,543 in Office Products ( See Top 100 in Office Products ) #19 in Drafting Compasses |
| Brand | Mr. Pen |
| Customer Reviews | 4.2 4.2 out of 5 stars (2,656) |
| Date First Available | January 11, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.2 ounces |
| Item model number | GP01 |
| Manufacturer | Mr. Pen |
| Manufacturer Part Number | GP01 |
| Material Type | Metal |
| Package Dimensions | 6.69 x 2.76 x 0.67 inches |

## Images

![Mr. Pen- Professional Metal Compass Set, 7 pcs, Precision Drafting Compass with Extension Leg, Pencil Holder, Extra Lead & Needles, Geometry Tool for Drawing Circles, Math, Engineering & Design - Image 1](https://m.media-amazon.com/images/I/71jcBnMQZRL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: What is the maximum diameter? The description says 18" while the video says 24"**
A: With the "extender leg" attached I am able to open the compass to a diameter of 11.5".  I don't see how you could expand it to 18" or 24".

**Q: Can you use this with other drawing utensils like markers?**
A: Yes you can use markers and pens and pencils. Built in there is a lead, but there's an attachment that lets you use any kind of writing pen/marker/pencil that is up to 1/2 in diameter.

**Q: What is the diameter of the lead? I need more than the standard black lead. Most compass's are 2mm>**
A: This is also 2mm.

Make one, there's plenty of cool compass plans available online. That's what I did for my trammel points (beam compass)

**Q: Does the small compass use the same 2 mm replacement leads?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent, Solid, Precise.....
*by G***T on October 7, 2020*

1. Was concerned when I read some reviews that said some screws were stripped. Actually they are NOT stripped, but free wheeling. In order to tighten, place a finger on the UNDERSIDE of the screw when tightening. Problem solved 2. I was concerned when I read that the protractor "wobbled" when the extension was attached. Only if it is NOT fully inserted into the slot and SECURED by the screw, If the screw is not secured by the above method, then it will wobble, otherwise NO problem. Works like a charm! 3. Only complaint is NOT enough information provided by the supplier. The "cute" included mustache isn't so cute when you have to solve the problems yourself and the "cute" video FAILS !

### ⭐⭐⭐⭐⭐ Great for Nautical Charting Class!
*by J***. on January 13, 2020*

I needed a reliable divider for a U.S. Coast Guard Charting/Navigation Course, and this tool did the trick. Super sturdy, reliable (in a classroom situation), and seems like it would be pretty durable (in a non-saltwater environment). The price and quick Prime shipping is what set Mr. Pen apart from their higher priced competitors, so I took a chance, and I’m glad I did. Definitely a great balance between price and value — I recommend this product. :)

### ⭐⭐⭐⭐ Great device, perfect for what I need.
*by P***7 on April 23, 2020*

My initial impressions are very good. It is a substantial feeling compass, good weight to it and the adjustment wheel is very sturdy. Overall I love the feel of the device and think it’s going to meet my needs for a long time to come. For the money I certainly can’t complain. If there were any complaints to be had, there was a little trouble with removing and installing the attachments for the extension, not sure why but I ended up having to take the set pin completely out, not a big deal. There is also just a slight bit of play in the joint where the arms meet the at the legs. This was easy to deal with and I don’t think it will be a deal breaker. I love that it came with spare parts and additional leads. I also like that it came with an attachment for a regular pencil. Overall very happy with the purchase!

## Frequently Bought Together

- Mr. Pen- Professional Metal Compass with Wheel and Lock for Geometry, Compass Geometry Tool, Drawing Compass, Drafting Compass, Math Compass, Geometry Compass, Compass Drawing Tool, Compass Math
- DIYSELF 1 Pcs Craft Hobby Knife Exacto Knife with 11 Pcs Stainless Steel Blade Kit, 1pcs Steel 15CM Ruler for Art, Scrapbooking, Stencil (Purple)
- Calligraphy Pen Set

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-04-24*