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  • Staedtler Masterbow Comfort Student Compass for Circles to 10.25 Inch Diameter, Lead and Pouch (551-40-WP)
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Staedtler Masterbow Comfort Student Compass for Circles to 10.25 Inch Diameter, Lead and Pouch (551-40-WP)


Price: $11.93 & FREE Shipping on orders over $35. Details
Only 16 left in stock.
  • Prevents unintended setting adjustments
  • Maximum circle diameter is 10-3/8'' (265 mm)
  • Includes a spare lead tube and comes in a plastic wallet
  • Size: 3-1/4"W x 1/2"D x 7-1/2"L
19 new from $10.18

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Product Information

Technical Details
Brand NameStaedtler
Item Weight1.6 ounces
Product Dimensions0.5 x 3.3 x 7.5 inches
Item model numberSTD55140WP
ColorChrome
Number of Items1
Manufacturer Part NumberSTD55140WP
  
Additional Information
ASINB0013CKLIU
Best Sellers Rank #1,714 in Office Products (See top 100)
Shipping Weight1 pounds (View shipping rates and policies)
ShippingThis item is also available for shipping to select countries outside the U.S.
Date First AvailableAugust 26, 2008
  
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Product Description

All-metal spring-bow compass feature a center wheel that delivers precision setting and prevents unintended setting adjustments. Maximum circle diameter is 10-3/8'' (265mm). Design features interchangeable lead part and a nickel finish to resist rust and stains. Compass includes a spare lead tube and comes in a plastic wallet.

Customer Questions & Answers

Customer Reviews

I just be "there's that lead!"
Mason M
It is extremely precise, doesn't wobble, and, with careful treatment, will last me a very long time.
the_aleph
Today, after less than one week of use, the compass broke. (one of the legs snapped).
Carol Maxwell

Most Helpful Customer Reviews

18 of 18 people found the following review helpful By John B. Goode TOP 500 REVIEWER on May 7, 2010
All the reviewers so far have given this compass a very low rating because it doesn't come with lead or because the lead was too expensive or the plastic case came torn. Be that as it may, no one has addressed the compass itself. All I can say is that the compass is very high quality and works very well. The lack of lead has not bothered me because I do a lot of technical drawing and I already have plenty of spare lead. From experience, I can say that you don't need a lot of extra lead because most people don't draw a lot of circles in their work. My extra secret recommendation, I use a harder than normal lead and press lighter. This way, your lines are crisper. Use trial and error to find your optimum type of lead. Anyway, for a quality compass, you can't beat this one.
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12 of 12 people found the following review helpful By Tax Filer on August 25, 2012
So, for about 6 months this was great compass. Then the threaded insert/bushing that locks the compass in place wore enough so that the compass would open on it's own - making it about impossible to draw a circle. The problem is the nylon-type bushing they use. It won't hold up to a lifetime of work like a Staedtler should. I have one from 1990 with metal bushing that still works perfectly. I am sure this was a cost saving measure, but if it doesn't work it isn't worth it. I'll gladly pay $2 more for something that works. (I have at least temporarily fixed this by whacking the bushings with a metal punch and deforming the nylon and metal. We'll see how long it lasts, but I shouldn't have to do this!)
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6 of 6 people found the following review helpful By the_aleph on July 10, 2011
Verified Purchase
Originally, I did order the GeoMaster Bow Compass from Amazon and then returned it. I then went to my local art store and purchased this one in person. This one is better both because I purchased it in person and for other utilitarian design reasons.

I went in because I wanted to examine first-hand the threaded precision wheel. First off, when purchasing a compass that has a threaded precision wheel, the threads of the adjustment bar are what make the difference. If your needs aren't that precise, the GeoMaster and its coarser threads won't be such a big deal. But if you are doing super precise work or are a minimal error tolerance type of person, the coarse threads will drive you batty. One needs to make sure the threads are fine enough for the intended usage, and the finer and more precision-machined they are, the more expensive it gets. It's not something you can verify while shopping online.

The GeoMaster's threads were too coarse and when I squeezed the compass arms, I could feel the play. I'm not saying I squeeze my compass like a stress-relief toy. Instead, I need my compass to to draw consistent circles when I trace from one sheet to another. This is why I went to the store in person - to test out the compasses, to make sure I got a model with fine enough threads, and to make sure that the one I was purchasing wasn't an overlooked factory reject.

I also appreciate the extra features on this compass such as the modifiable/sleeve drawing arm and the full metal body. This particular model has fulfilled my anal-retentive quality expectations. It is extremely precise, doesn't wobble, and, with careful treatment, will last me a very long time. I am happy with it and intend to love it by putting it to lots of use.

P.S.
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22 of 30 people found the following review helpful By KM on February 6, 2010
I purchased a more expensive model of this compass (Staedtler Geo Master), and I too, did not read the small print that said, "contains Lead Container". It didn't say it actually had any lead IN the container! And yes, this was certainly a rip-off considering I paid $15 for my compass. Anyway, you can purchase the leads from Micheal's craft stores. They are 2mm and contained in 3 tubes about 4 inches long. They are hanging next to the compasses. Unfortunately, you will pay as much for the lead refills as you did for the compass! It costs $6.49, so make sure you have one of their 40-50% off coupons before you shop. I have 4 kids to go through Geometry, so I looked at the lead purchase as a long-term investment. With that said, I will now address the problem that I had with the more expensive compass - after only 4 weeks of use, the compass started to unwind itself! The gear won't hold the legs still so my son cannot draw a circle. It's really neat to watch, but it's completely unusable. I do not know if this particular compass does this, but the plastic nuts get stripped from usage and the screw and gear just takes off by itself. Check to make sure those nuts in the legs where the screw/gear is connected are made of metal instead of plastic. Mine is going back. This is completely unacceptable.
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9 of 12 people found the following review helpful By Mason M on February 7, 2012
Verified Purchase
Wowee, this compass! I'm enjoying the crap out of this thing! Every time I set this thing on the paper, it makes these perfect circles like you wouldn't BELIVE! And dont get me started on that pouch! When I carry this bad boy around people look and they're all like "look and that fine compass! That dude knows how to make a perfect circle." And here's the best part: this thing comes with- wait for it- a piece of lead! In its own little tube! When I saw it I was all "Man, are you serious?" Now I'll never be "where did I put that lead?" I just be "there's that lead!" I would have spent three times as much on this fine piece of class! But I didn't because I'm broke and needed a compass.
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