How can a compass with 12" legs measure 30" between the points like in the picture?

It only needs to have 15" between points to make a 30" circle. 12" legs achieve that less than 90° open.

Will this accommodate a paint marker, larger than a pencil?

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.

How do you get it to open. I received mine in the mail today and I can’t get it to spread apart

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.

Great Compass , but we’re missing the two set screws 😥

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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Mr. Pen- Professional Compass for Woodworking, Compass with Wing

Product ID: 214776036

Details

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

📏12-inch leg for precision

🔩Lockable sliding nut for repeatability

🖊️Pencil holder for quick swaps

€ 20.55

Duties & taxes included

In stock

Sold byAmazon IrelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ireland.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

🛠️ Master your craft with precision and style!

SMART PENCIL HOLDER - Easily swap and sharpen pencils without interrupting your workflow.
PRECISION MEETS POWER - Draw circles up to 30 inches with unmatched accuracy.
EFFORTLESS ADJUSTMENTS - Lockable sliding nut ensures quick, repeatable measurements every time.
DURABLE ALL METAL BUILD - Engineered for professionals who demand longevity and reliability.
VERSATILE CRAFTING TOOL - Perfect for woodworking, metalwork, leather, and geometry projects.

The Mr. Pen Professional Compass is a robust all-metal drafting tool designed for woodworking, carpentry, metalwork, and more. Featuring a 12-inch leg capable of drawing circles up to 30 inches in diameter, it includes a lockable sliding nut for precise, repeatable measurements and a convenient pencil holder for quick pencil changes. Trusted by professionals, it combines durability with versatile functionality to elevate your craftsmanship.

Specifications

ASIN	B086RV9W72
Best Sellers Rank	#7,025 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Joint Calipers & Dividers #1,413 in Hand Tools (Tools & Home Improvement)
Brand Name	Mr. Pen
Color	Silver
Customer Reviews	4.4 4.4 out of 5 stars (3,402)
Item Dimensions L x W	12"L x 12"W
Manufacturer	Mr. Pen
Material Type	Metal
Model	GW01
Number of Items	1
Part Number	GW01
Style Name	Classic
UPC	850016784230
Unit Count	1 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.