---
product_id: 263716582
title: "Mr. Pen- Professional Compass with Lock, Up to 18 inch Diameter, Compass for Geometry, Drafting Compass, Precision Compass Math, Compass Drawing, Compass with Wheel, Metal Compass Geometry"
brand: "mr. pen"
price: "S$28"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/263716582-mr-pen-professional-compass-with-lock-up-to-18-inch
store_origin: SG
region: Singapore
---

# 18" Diameter Lock Mechanism Precision Drawing Mr. Pen- Professional Compass with Lock, Up to 18 inch Diameter, Compass for Geometry, Drafting Compass, Precision Compass Math, Compass Drawing, Compass with Wheel, Metal Compass Geometry

**Brand:** mr. pen
**Price:** S$28
**Availability:** ✅ In Stock

## Summary

> 🎨 Draw the Line Between Ordinary and Extraordinary!

## Quick Answers

- **What is this?** Mr. Pen- Professional Compass with Lock, Up to 18 inch Diameter, Compass for Geometry, Drafting Compass, Precision Compass Math, Compass Drawing, Compass with Wheel, Metal Compass Geometry by mr. pen
- **How much does it cost?** S$28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/263716582-mr-pen-professional-compass-with-lock-up-to-18-inch)

## 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

- • **Built to Last:** Premium metal construction with a lifetime satisfaction guarantee.
- • **Stay in Control:** Quick setting adjustment with a push button mechanism.
- • **All-in-One Convenience:** Includes 10 extra leads, spare needle, and a handy pouch.
- • **Unleash Your Creativity:** Craft perfect circles up to 18 inches with ease!
- • **Precision at Your Fingertips:** Spring bow head and center wheel for flawless geometry.

## Overview

The Mr. Pen Professional Compass is designed for precision in geometry, drafting, and art. With a maximum circle diameter of 18 inches, it features a robust metal construction, a quick adjustment mechanism, and comes with additional leads and tools for a complete drawing experience. Perfect for professionals and students alike, this compass ensures accuracy and ease of use.

## Description

Mr. Pen- Professional Compass with Lock, Up to 18 inch Diameter, Compass for Geometry, Drafting Compass, Precision Compass Math, Compass Drawing, Compass with Wheel, Metal Compass Geometry

## 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 |
|---------------|-------|
| Manufacturer | Mr. Pen |
| Brand | Mr. Pen |
| Model number | GP01 |
| Package Dimensions | 16.99 x 7.01 x 1.7 cm; 118 g |
| Material Type | Metal |
| Manufacturer Part Number | GP01 |
| Item Weight | 118 g |

## Images

![Mr. Pen- Professional Compass with Lock, Up to 18 inch Diameter, Compass for Geometry, Drafting Compass, Precision Compass Math, Compass Drawing, Compass with Wheel, Metal Compass Geometry - 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

## 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
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**Shop now:** [https://www.desertcart.sg/products/263716582-mr-pen-professional-compass-with-lock-up-to-18-inch](https://www.desertcart.sg/products/263716582-mr-pen-professional-compass-with-lock-up-to-18-inch)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-27*