---
product_id: 500580908
title: "Professional Large Compass for Woodworking, 12 Inch Compass with Wing, Compass for Geometry, Compass Drawing Tool, Woodworking Compass, Pencil Compass for Carpenter, Drafting, Drawing Compass"
brand: "mr. pen"
price: "$30.22"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/500580908-professional-large-compass-for-woodworking-12-inch-compass-with-wing
store_origin: US
region: United States of America
---

# 12-inch precision legs Lockable sliding nut for repeatable accuracy Integrated pencil holder for quick swaps Professional Large Compass for Woodworking, 12 Inch Compass with Wing, Compass for Geometry, Compass Drawing Tool, Woodworking Compass, Pencil Compass for Carpenter, Drafting, Drawing Compass

**Brand:** mr. pen
**Price:** $30.22
**Availability:** ✅ In Stock

## Summary

> 🛠️ Master your craft with precision and style!

## Quick Answers

- **What is this?** Professional Large Compass for Woodworking, 12 Inch Compass with Wing, Compass for Geometry, Compass Drawing Tool, Woodworking Compass, Pencil Compass for Carpenter, Drafting, Drawing Compass by mr. pen
- **How much does it cost?** $30.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/500580908-professional-large-compass-for-woodworking-12-inch-compass-with-wing)

## 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

- • **Smart Pencil Holder:** Quickly change pencils without interrupting your workflow
- • **Effortless Adjustments:** Lockable sliding nut ensures consistent, repeatable measurements
- • **Multi-Material Mastery:** Perfect for woodworking, metalwork, leather, and more
- • **Robust All-Metal Build:** Durable design built to last through every project
- • **Precision Meets Versatility:** Draw circles up to 30 inches with unmatched accuracy

## Overview

The Mr. Pen Professional Compass is a durable, all-metal 12-inch tool designed for precise circle drawing up to 30 inches in diameter. Featuring a lockable sliding nut for repeatable measurements and a convenient pencil holder, it’s ideal for woodworking, metalwork, leather crafting, and technical tasks.

## Description

Mr. Pen- Professional Large Compass for Woodworking, 12 Inch Compass with Wing, Compass for Geometry, Compass Drawing Tool, Woodworking Compass, Pencil Compass for Carpenter, Drafting, Drawing Compass

## Features

- Professional All Metal Compass/Divider For Woodwork, Carpentry, Metal Work, Leather Work, Math, Etc.
- The Compass Leg Measure 12 Inch And Can Draw Circles Upto 30 Inch (76 cm) in Diameter
- Designed With A Pencil Holder To Easily Change The Pencil For Sharpening Purposes (Pencil Is Not Included)
- Can Be Used As A Scribe Or Divider To Quickly Measure lengths And Copy Measurements
- Lockable Sliding Nut Design Allows For Quick Leg Adjustment And Repeatable Measurements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | 12 Inch |
| Batteries included? | No |
| Brand | Mr. Pen |
| Manufacturer | Mr. Pen |
| Item model number | GW01 |
| Package Dimensions | 33.4 x 8.2 x 1.6 cm; 390 g |
| ASIN | B086RV9W72 |

## Product Details

- **Brand:** Mr. Pen
- **Color:** Silver
- **Material:** Metal
- **Product Dimensions:** 12"L x 12"W
- **Style:** Classic

## Images

![Professional Large Compass for Woodworking, 12 Inch Compass with Wing, Compass for Geometry, Compass Drawing Tool, Woodworking Compass, Pencil Compass for Carpenter, Drafting, Drawing Compass - Image 1](https://m.media-amazon.com/images/I/61+36XQO2pL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Questions & Answers

**Q: How can a compass with 12" legs measure 30" between the points like in the picture?**
A: It only needs to have 15" between points to make a 30" circle. 12" legs achieve that less than 90° open.

**Q: Will this accommodate a paint marker, larger than a pencil?**
A: The holder for the pencil is about the size of a standard pencil, so I would say no. I suppose you could tape the marker to it, but it won't fit in the holder.

**Q: How do you get it to open. I received mine in the mail today and I can’t get it to spread apart**
A: All you have to do is to simply spread it apart as needed. You may have to use a little pressure. One thing that could cause trouble is the little black locking  nut on the top. Make sure it is loose first Just turn it counter-clockwise to loosen it. To fit a regular number 2 pencil in the holder, you may have to sand it down a little.

**Q: Great Compass , but we’re missing the two set screws 😥**
A: The carpenter's 12" compass I received lacked the locking and pencil retention screws necessary for its use. I e-mailed the Mr. Pen folks to request the screws early that evening. They responded via e-mail around three the next morning apologizing for the problem and stating that if I'd send them my Amazon order number they would be happy to send me a new compass. I did so and received notification that my order had shipped that same day. Two days later I received my new compass. No hassle and prompt, cheerful customer service make this a great outfit to do business with. And yes, the product was of great quality.

## Frequently Bought Together

- Mr. Pen- Professional Large Compass for Woodworking, 12 Inch Compass with Wing, Compass for Geometry, Compass Drawing Tool, Woodworking Compass, Pencil Compass for Carpenter, Drafting, Drawing Compass
- Mr. Pen- Professional Compass for Geometry, Extra Lead, Metal Compass, Compass, Compass Drawing Tool, Drawing Compass, Drafting Compass, Compass for Students, Compass for Woodworking, Compass Geometry

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-26*