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ALVIN Professional Jet-Bow Speed Compass with Beam Bar, Model 975VK Geometry and Engineering Kit, Drawing and Architecture Tools - 6 Inch

4.2 4.2 out of 5 stars 147 ratings

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6" Pro Jet-Bow Speed w/beam

Purchase options and add-ons

  • Easy to Use - This compass is exactly what an artists, student, crafter, or hobbyist needs. It can be used as a basic drafting or drawing instrument for both projects and artwork.
  • Premium Quality - Made with a matte nickel finish , this German-made academic divider stays in place and will withstand stains and tarnishing. Ideal for long-lasting use.
  • Extra Features - With gearhead construction and double break leg design, this compass comes with a container of extra led as well as a beam bar that allows for the precise drawing of circles up to 20 inches in diameter.
  • Conveniently Packaged - Comes in a hard, see-through plastic case for portability and easy storage and transport.
  • Multipurpose Tool - Exactly what you need for a number of projects including bisecting angles, constructing geometric shapes, including perpendicular lines, parallel lines, triangles, circles, and pentagons.

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Product Description

Professional Drawing Compass

student drawing circles with geometry compasses

Pictured: Model 604 Master Bow Compass

ALVIN drawing compasses span a massive range of sizes, applications, and uses. Our traditional beginner and intermediate level compasses are sure to find themselves right at home in any geometry or art class. Our professional-level compasses are the perfect precision tool that any engineer, draftsman, or professor needs to add to their collection of drawing instruments. These metal drafting compasses can make precision circles from 1/8" up to 22" in diameter with added beam bar.

architectural compass woodworking compass metal compass large drawing compass compass drawing Math compass
Model 201 Model 203 Model 504 Model 604 Model 608K Model 494
Customer Reviews
4.5 out of 5 stars
309
4.5 out of 5 stars
309
4.5 out of 5 stars
309
4.5 out of 5 stars
309
4.3 out of 5 stars
55
4.5 out of 5 stars
309
Needle Replacement
Beam Bar
Ruling Pen
Pencil Adapter
Math compass compass carpentry drafting compass metal compass student compass compass for school
Model 975K Model 205V Model 505V Model 795B Model 302 VJ Model 505
Customer Reviews
4.2 out of 5 stars
147
4.2 out of 5 stars
147
4.2 out of 5 stars
147
4.3 out of 5 stars
55
4.2 out of 5 stars
147
4.3 out of 5 stars
55
Needle Replacement
Beam Bar
Ruling Pen
Pencil Adapter
locking compass drawing compas Spring Blade Ruling Pen Graduated Beam Compass Beam Compass Circle Drawing Tool
Model 560 Model 660 Model 958 Model 961X Model 961B Model 929JS
Customer Reviews
4.6 out of 5 stars
50
4.6 out of 5 stars
50
3.9 out of 5 stars
32
4.4 out of 5 stars
163
4.4 out of 5 stars
163
4.3 out of 5 stars
55
Needle Replacement
Beam Bar
Ruling Pen
Pencil Adapter Adapter

ALVIN compasses are made with German precision engineering that allows for the precise and consistent drawing of radii. Made from quality materials such as zinc alloy, ALVIN drafting compasses are sure to last the test of time. The more advanced models, such as the 205V and the 975K, have adjustable knee joints for rapid adjustment and even greater ability to draft with accuracy. Kits with pencil adaptors allow for the attachment of a drafting pencil, pen, or marker. Add one of ALVIN's model 958 spring blade pencils to your kit with a pencil adaptor, or buy the model 505V kit to take your drafting abilities to another level. This pen is finely honed to create precise lines with India Ink.


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ALVIN Professional Jet-Bow Speed Compass with Beam Bar, Model 975VK Geometry and Engineering Kit, Drawing and Architecture Tools - 6 Inch


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What's in the box

  • Arts, Crafts and Sewing^Craft Supplies^artists-compasses
  • Customer reviews

    4.2 out of 5 stars
    4.2 out of 5
    147 global ratings

    Customers say

    Customers like the performance, ease of use, and value of the compass. For example, they mention it's a great product, easy to set, and adjusts to the pattern. That said, some complain about the appearance, saying it has a very poor design. Opinions are mixed on quality, circle quality, and stability.

    AI-generated from the text of customer reviews

    26 customers mention24 positive2 negative

    Customers are satisfied with the performance of the compass. They say it's a great product, amazing, and professional. They also say it does the job very well, is accurate, and versatile. However, some customers have reported issues with the case.

    "...However, for quick release and for pens, this is the best compass out there...." Read more

    "...this is an awsom set, my family loves it, we got alot of complements on its beauty. from alvin&Co, a trusted name, definitly Recomended." Read more

    "...Built to last, interchangeable for markers, pens or other pencils and overall just a great compass!" Read more

    "This is a very good compass. It has a solid feel to it and the build material is very good as well...." Read more

    9 customers mention9 positive0 negative

    Customers appreciate the value of the product. They mention it's a great seller, but some customers find the quality disappointing for the money.

    "...Quality disappointing for the money." Read more

    "...to hold its shape...but the sharpie extension is awesome and worth the price by it self!" Read more

    "Excellent product and value and service. Haven’t had long enough to grade durability." Read more

    "This instrument is exactly what I needed and of course the price was right!! This tool replaced one that had broken from long use...." Read more

    6 customers mention6 positive0 negative

    Customers find the product easy to use. They mention that the design allows for easier setting, and the quick-release buttons make fast adjustment of the arms. They also say it adjusts to the pattern the creator wishes to draw.

    "...hits the sweet spot for me in terms of precision, quickness, and ease of use.Now for the bad...." Read more

    "I really love the quick-release buttons for fast adjustment of the arms...." Read more

    "...Unit is lightweight and easy to use. At least compared to my old, aluminum Staedtler Mars, which is far superior to this one by Alvin...." Read more

    "...It works well and the design allows easier setting." Read more

    39 customers mention26 positive13 negative

    Customers are mixed about the quality of the drawing instrument. Some mention it's well crafted and built to last, while others say the plastic pieces don't hold up and it will break easily. The packaging was flimsy and the cross piece didn't fit securely.

    "...non-quick release compass is slightly better as it has zero play for acurate drawing - especially sacred geometry or complex polygons...." Read more

    "beautifull, solid quality here. heavy stainless quality made in germany, known for theyr craftsmenship for drawing tools and HQ Pens...." Read more

    "...all over the place while you're drawing circles because it is constructed like a toy, with plastic pieces in places where only metal should be...." Read more

    "...I love Alvin compasses, they are solid and very well designed and built. I've been using them for years...." Read more

    8 customers mention3 positive5 negative

    Customers are mixed about the quality of the compass. Some mention that it draws accurate circles, while others say that it moves all over the place and can't make a consistent circle.

    "...It makes it virtually impossible to draw a fine-line circle during hand drafting procedures...." Read more

    "This drawing instrument draws acurate circles, although I wish it was made more tightly...." Read more

    "...knob, the arm moves around a lot in the slot and just can't make a consistent circle...." Read more

    "...Even when i can manage to keep the knees unbent, I can't get a consistent circle...." Read more

    6 customers mention3 positive3 negative

    Customers are mixed about the stability of the compass. For example some mention it's well crafted, and locks into position tightly. However, others say that the storage box won't stay closed.

    "Finally!!!! A compass that works! the hinge stays at the adjustment you set. we tried a less expensive set that had great reviews but was crummy...." Read more

    "...The plastic case isn't great either...nice for display but it won't open flat without raising/tilting it, and then the parts fall out of their..." Read more

    "...Very well crafted; locks into position tightly. Highly recommend." Read more

    "...As for the seller: The plastic storage box was cracked and won't stay closed. I thought I was purchasing a new product not a used one...." Read more

    8 customers mention0 positive8 negative

    Customers are dissatisfied with the springiness of the compass. They mention that it has some in and out wiggle, it wobbles all over the place while drawing circles, and it leaves them feeling uncomfortable. The tightening knob, the arm moves around a lot in the slot, which allows erratic movement in the spherical comPASS.

    "...I have given up on this "instrument." It wobbles all over the place while you're drawing circles because it is constructed like a toy,..." Read more

    "...open flat without raising/tilting it, and then the parts fall out of their holding places easily...have to slip in the transverse screw below the..." Read more

    "...The springiness comes at two points: At the leg adjustment, and also at the writing instrument, although the more solid the writing instrument the..." Read more

    "...No matter how hard I try to crank the tightening knob, the arm moves around a lot in the slot and just can't make a consistent circle...." Read more

    7 customers mention0 positive7 negative

    Customers are dissatisfied with the appearance of the compass. They mention that it has a very poor design, the engineering and manufacturing is horrible, and the case is a little beat up. The metal finish is horrible and uneven, making it subpar.

    "...This case is a little beat up, but a great improvement over the first, though I had to switch out everything inside, because the compass had..." Read more

    "...The leg articulation is ridiculously unstable - I mean it's a really poor design that cannot be clamped tight enough to hold the legs in place..." Read more

    "...The plastic box it came in was also really low quality, it will break very easily...." Read more

    "...The engineering and manufacturing is horrible, and it is not as sturdy as any of the older Staedtler compasses I used in the past...." Read more

    Best quick release compass with little to no play
    5 Stars
    Best quick release compass with little to no play
    I’ve tried a dozen compasses. The Alvin non-quick release compass is slightly better as it has zero play for acurate drawing - especially sacred geometry or complex polygons.However, for quick release and for pens, this is the best compass out there. I’ve tried so many other compasses, like Mr Pen, and they have way too much play - at lease the quick release models.Highly recommend
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    Top reviews from the United States

    Reviewed in the United States on December 22, 2023
    Style: Pro Speed Bow w/ BeamVerified Purchase
    Customer image
    5.0 out of 5 stars Best quick release compass with little to no play
    Reviewed in the United States on December 22, 2023
    I’ve tried a dozen compasses. The Alvin non-quick release compass is slightly better as it has zero play for acurate drawing - especially sacred geometry or complex polygons.

    However, for quick release and for pens, this is the best compass out there. I’ve tried so many other compasses, like Mr Pen, and they have way too much play - at lease the quick release models.

    Highly recommend
    Images in this review
    Customer image
    Customer image
    Reviewed in the United States on December 27, 2014
    Style: 6" Pro Jet-Bow Speed w/beamVerified Purchase
    Reviewed in the United States on September 15, 2023
    Style: 6 1/2" Speed Bow Intro w/beamVerified Purchase
    Reviewed in the United States on April 12, 2015
    Style: 6" Pro Jet-Bow Speed w/beamVerified Purchase
    3 people found this helpful
    Report
    Reviewed in the United States on July 20, 2023
    Style: 6" Pro Jet-Bow Speed w/beamVerified Purchase
    Customer image
    3.0 out of 5 stars Caveat Imptor
    Reviewed in the United States on July 20, 2023
    As you’ll notice in many of the other reviews on this item, it doesn’t always come “complete” for lack of a better term. In my case, one of the speed levers which serve to lock the arms into place was missing the rivet that constituted it’s fulcrum. Without this part, one leg has a full 1.5” of play to it, alloying it to move around while using it and defeating the purpose of a compass. I will say though, beyond this crucial flaw, the rest of the construction on mine was great! It feels great in the hand, has a nice weight to it and otherwise a solid product. Given the number of reviews sharing in similar issues, there’s a significant chance when buying this it may not arrive intact or operational. However, it’s a good product, so if you decide to buy one, be mindful that you may likely need to return it or expect to make repairs yourself.
    Images in this review
    Customer image Customer image Customer image
    Customer imageCustomer imageCustomer image
    3 people found this helpful
    Report
    Reviewed in the United States on March 23, 2012
    Style: 6" Pro Jet-Bow Speed w/beamVerified Purchase
    17 people found this helpful
    Report
    Reviewed in the United States on December 26, 2012
    Style: 6" Pro Jet-Bow Speed w/beamVerified Purchase
    4 people found this helpful
    Report
    Reviewed in the United States on April 23, 2015
    Style: 6" Pro Jet-Bow Speed w/beamVerified Purchase

    Top reviews from other countries

    Amazon Customer
    5.0 out of 5 stars Thank you
    Reviewed in Canada on August 22, 2020
    Style: Pro Speed Bow w/ BeamVerified Purchase
    Lynn Bourgeois
    5.0 out of 5 stars Alvin bow compass
    Reviewed in Canada on December 19, 2014
    Style: 6" Pro Jet-Bow Speed w/beamVerified Purchase
    matt m
    4.0 out of 5 stars Best I've found
    Reviewed in Canada on June 5, 2021
    Style: 6" Pro Jet-Bow Speed w/beamVerified Purchase
    Jax
    2.0 out of 5 stars Hinged legs are ridiculous
    Reviewed in Canada on March 18, 2018
    Style: 6" Pro Jet-Bow Speed w/beamVerified Purchase
    One person found this helpful
    Report
    Xavier Lesperance
    4.0 out of 5 stars Good product
    Reviewed in Canada on December 17, 2015
    Style: 6" Pro Jet-Bow Speed w/beamVerified Purchase