Retail: $30.37
    Price: $19.30
    You Save: $11.07 (36.5%)
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    Model Number: 302VJ
    Estimated Delivery Time: 3 - 7 Business Days
    Alvin Drafting Speed Bow Introductory Compass with Beam Bar

    Model Number: 302VJ

    Synchronized precision scissor-action thread system opens or closes legs to desired radius in one quick motion. Perfectly balanced and weighted for easy one-hand operation.

    Features:

    • Creates circles up to 12" in diameter
    • Beam bar extension for drawing circles up to 25" in diameter
    • Double-knee joints for parallel leg positioning
    • Durable nickel-plated zinc construction in silver with black fiberglass crown and reinforcements
    • Spare needle point and two leads included
    • Packaged in hard, see-through plastic case
    • Made in Germany

    Product Dimensions:
    • Outside Dimensions:
    • Product Weight: 0.4 lbs.
    Ask a Question. We would love to help!

    Would like to know how to connect beam bar. (Wes S.)
    To connect the beam bar simply remove the lead that is in the compass by loosening the knob and pulling the lead out. Then insert the smaller end of the extension bar and tighten the knob back down.
    Alvin Drafting Speed Bow Introductory Compass with Beam Bar

    Overall Customer Rating of 1 Reviews:
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    Appearance:
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    Quality:
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    Pros:
    • inexpensive
    Cons:
    • poor quality
    The "speed" feature of the compass was what I was looking for. However the jointed part of each leg is made of poor quality (read plastic) materials and I was unable to use the tightening screws to make the legs rigid. I had to use vise grips to twist the tightening screws tight enough to create the rigidity required for precision work. I am concerned that if I tighten the screws any more, the plastic joint will collapse. For $6.00, you get what you pay for. I couldn't find any other speed compass out there, otherwise I would have been happy to pay for a quality instrument that keeps its settings accurately.