Alvin 961X Graduated Beam Compass

September 15, 2017 - Comment
Add to Cart $39.93Amazon.com Price
(as of 7 April 2020 05:33 GMT+0100 - Details)

Includes two 13 inches graduated beam bars and one coupling to accommodate circles up to 48 inches diameter. Inch and metric graduations. Spring-loaded thumbwheel on the top of each slide assembly allows for smooth and precise adjustments. Comes complete with interchangeable ruling pen, pencil, and divider legs. Includes spare leads and needlepoint. Packaged in a protective case with clear cover.

Product Features

  • Two 13 inch graduated beam bars
  • Circles up to 48 inches diameter
  • Spring loaded thumb wheel
  • Smooth and precise adjustments
  • Comes complete with interchangeable ruling pen

Comments

John S. says:

Very handy tool for those who still prefer hand drafting. Perfect for my needs. I have a Staedtler rotary sharpener designed for these drafting leads so I did not have any problems with the beam scale calibration. I think someone reported a problem, but the only thing I can think of is that he used a sanding board to sharpen the leads, which would leave the point off-center, and will screw-up the calibration.

Dr. M says:

new “old-style” drafting/engineering tool at a reasonable price I disagree with the reviewer who claims in 2007 that this is a flimsy tool. What arrived in 2010 is what I would have expected as an engineer or a draftsman (I am an engineer). The item is made in Germany, and I find no flaws in the tool itself. 

Beth says:

Wonderful quality I have been wanting to purchase this beam compass for some time but was put off by the price. After trying to mark large circles using a pencil on a string or using a yardstick with holes drilled in it, I was continuously disappointed with their imprecision. I am so glad that I finally bought this compass. It is light but extremely sturdy. I am really impressed with its quality, and I’m glad I got the graduated one with measurement markings on it. It’s packaged neatly in a relatively…

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