Mr. Pen- Professional Compass for Woodworking, 8 Inch Compass with Wing

Mr. Pen- Professional Compass for Woodworking, 8 Inch Compass with Wing

Q: 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.

Q: 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.

Q: 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.

Q: 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.

4.4/5

Product ID: 500580908

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📏12-inch precision legs

🔩Lockable sliding nut for repeatable accuracy

🖊️Integrated pencil holder for quick swaps

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

Description

🛠️ Master your craft with precision and style!

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

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.

Specifications

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

Have a Question? See What Others Asked

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

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

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

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

Reviews

4.4

All from verified purchases

R**B

Worth the money

Cheap but solid

7.05.2025

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TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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

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