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

  • Based on 3,398 reviews
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Availability: In Stock.
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Arrives Tuesday, Aug 18
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Size: 12 Inch


Features

  • Professional All Metal Compass/Divider For Woodwork, Carpentry, Metal Work, Leather Work, Math, Etc.Professional Carpenter Pencil Compass for Geometry, Drawing
  • 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

Description

Compass Compass Compass Compass Compass Compass Compass - Small American Family Business - Founded by Teachers in Louisiana - We love our customers Having firsthand experience teaching in at-risk schools in different parts of the United States, seeing the daily struggles of students and teachers, we, a few business-minded teachers, founded Mr. Pen with a simple purpose: serving the schools in our community by providing them with high quality and affordable school supplies and tools to help them in their efforts.

Material: Metal


Brand: Mr. Pen


Color: Silver


Style: Classic


Product Dimensions: 12"L x 12"W


Brand Name: Mr. Pen


UPC: 850016784230


Unit Count: 1 Count


Number of Items: 1


Manufacturer: Mr. Pen


Model: GW01


Part Number: GW01


Material Type: Metal


Item Dimensions L x W: 12"L x 12"W


Color: Silver


Style Name: Classic


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews


  • Way Beyond My Expectations
Size: 12 Inch
This compass is amazingly robustly constructed of premium materials. It is WAY beyond the quality I was expecting. Heavy materials, precision construction, absolute mechanical reliability and design. Gorgeous instruments. I bought both sizes for use in carpentry and construction applications, and was just blown away by the quality of of their construction and actual beauty as instruments for this scale of use. ... show more
Reviewed in the United States on July 19, 2026 by Joshua B. Johnson, Jr.

  • Must-Have for Precision Layout Work
Size: 12 Inch
This is a must-have if you do any kind of woodworking or layout work. It’s one of those tools that seems simple but makes a big difference in accuracy and consistency. The build quality is solid—the metal construction feels durable and well-made, not flimsy like cheaper compasses. The wing adjustment is a huge plus because it lets you dial in your measurements precisely and keeps them locked in without slipping. It makes marking circles, arcs, and repeat measurements quick and accurate. Once you set it, it stays consistent, which is key when you’re trying to get clean, professional results. The pencil holder grips well, and the point is sharp enough to stay planted without wandering, so your lines come out clean and controlled. It’s also a good size—large enough for bigger layouts but still easy to handle and store. Overall, simple tool but extremely effective. If you care about precision and clean layout work, this is definitely something you ... show more
Reviewed in the United States on April 3, 2026 by Hamza Ramić

  • Not what I expected.
Size: 8 Inch
I never write reviews but for this I will make an exception. It is not at all what I expected. It is very heavy. The one on the right is 1.5oz, the Mr. Pen is 7.5oz. It's massive in comparison. You could stab the neighbor's mastiff with it. If you are looking for a compass made of German steel with precision you will be disappointed. This is not the one, however it is not without its charm. After the better part of an hour of sanding, filing and a few trips to the oscillating spindle sander it is smoother and the rough edges are knocked off. The head joint pin is rock solid....matter of fact it's a bit too tight. Little bit of oil and some back in forth and it's better. The wing nut threads are a bit sandy feeling but passable. It will probably smooth out over time. It appears to be made by hand in a machine shop. No stamped parts except maybe the wing, but it's well made if a bit crude. If I were to place this beside my 9 1/2 Stanley block plane(which I like better than my Veritas) you would have a hard time discerning that they were not built in the same era. There is no Made In China stamp on it. It takes a number two pencil and holds it fast and draws circles very well. The design is simple, solid and effective. It's what a good tool should be. And it's not too spendy. The only knock I have is the rough edges. I'd like to see a 2.0 version with a little more finesse. ... show more
Reviewed in the United States on April 13, 2026 by Sophia M.

  • Large compass
Size: 12 Inch
Nice compass but beware that it’s large and heavy. Super solid, but if you are looking for something smaller, this isn’t that. For the price, the quality is great.
Reviewed in the United States on June 25, 2026 by NJCarter

  • Good Quality
Size: 12 Inch
well made, not finished as nice as others, but works well.
Reviewed in the United States on July 17, 2026 by Kenn

  • A Nice Intermediate Compass
Size: 12 Inch
This 12-inch compass serves for making intermediate size circles and arcs in my shop as I have smaller compasses and a large trammel set for the really big stuff. This compass is solidly built and a good deal for the money. The pencil holder accepts standard pencils easily but will not take one of the oblong shaped carpenter's pencils. Not an issue with me. The compass was hard to open initially despite having a sheen of oil on it. I added a single drop of tri-flow lubricant to each side of the hinge and it worked much better (still a little stiff, which is good for holding position before tightening the main screw). If you haven't used a larger compass like this before it may seem awkward but I think it'll work fine for you once you're used to the heft of it. It opens to a 16-inch radius so you can make some pretty big arcs and circles. For radii below about 4-inches it will likely be less awkward to just use a smaller compass. Also nice for use as a divider. Note, though, that the "feet" in this compass are not all that sharp and would not be recommended for metal-working. Overall a nice addition to my shop. ... show more
Reviewed in the United States on July 29, 2026 by Spoon

  • Robust parts, poor accuracy
Size: 12 Inch
Solid build. Like, seriously solid build. I have nothing wrong with materials and construction quality. HOWEVER, I am greatly disappointed in the accuracy. The fit and finish leave quite a bit of room for improvement unfortunately. With a product this large especially it should not be as difficult to dial in alignment. Very Robust parts, poor alignment and fit of said parts. I should be able to get dead on results with no slop whether the needles are closed or open. For this I take off two stars. ... show more
Reviewed in the United States on June 22, 2026 by Christopher

  • Measure twice
Size: 8 Inch
Was worried I wouldn't have a use for it and instantly did very precise not hard to use looks made strong heavy duty some of the photos show that it was kind of off mine was dead on would recommend eyeballing only gets you so far that little bit of extra with the tool like this makes the world of a difference in the final product. ... show more
Reviewed in the United States on July 19, 2026 by Nonna

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