--- product_id: 27355485 title: "ALVIN Compass Pro Speed Bow with Beam Bar 6\" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch" brand: "alvin" price: "€ 71.40" currency: EUR in_stock: true reviews_count: 9 url: https://www.desertcart.at/products/27355485-alvin-compass-pro-speed-bow-with-beam-bar-6-model store_origin: AT region: Austria --- # Draw circles up to 18" diameter Push button + spindle for precise adjustments Zinc alloy matte chrome finish ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch **Brand:** alvin **Price:** € 71.40 **Availability:** βœ… In Stock ## Summary > 🎯 Master every curve with precision and style! ## Quick Answers - **What is this?** ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch by alvin - **How much does it cost?** € 71.40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/27355485-alvin-compass-pro-speed-bow-with-beam-bar-6-model) ## Best For - alvin enthusiasts ## Why This Product - Trusted alvin brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Portable & Protected:** Comes in a hard, transparent case for easy transport and safe storageβ€”always ready for your next project. - β€’ **Versatile Geometry Tool:** Perfect for architects, engineers, and creatives to bisect angles, draw polygons, and craft perfect circles. - β€’ **Durable Zinc Alloy Build:** Matte chrome finish ensures longevity and a sleek professional look. - β€’ **Rapid & Fine Adjustments:** Push button mechanism combined with spindle lets you switch sizes swiftly and dial in exact measurements. - β€’ **Precision German Engineering:** Craft flawless circles from 1/8" to 18" with unmatched accuracy. ## Overview The ALVIN Compass Pro Speed Bow 6" Model 205V is a premium German-engineered drafting compass made from durable zinc alloy with a matte chrome finish. Featuring a push button and spindle mechanism for quick and precise adjustments, it draws circles from 1/8" up to 18" diameter using the included beam bar and pen adapter. Ideal for professionals in geometry, engineering, and architecture, it comes packaged in a sturdy transparent case for portability and protection. ## Description 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. ## Features - Made from zinc alloy with a matte chrome finish. Sturdy push button mechanism allows for quick adjustments, while spindles is used for finite adjustments. - Features a double break leg for precise execution of circles up to 12" inches in diameter, includes leads, beam bar and pen adapter for circles up to 18" inches in diameter. - Premium Quality - Made in Germany and designed for durability and long-lasting performance for repeated use. - Multipurpose Tool - Exactly what you need for a number of projects including bisecting angles constructing geometric shapes, including perpendicular lines parallel lines, triangles, circles, pentagons - Conveniently Packaged - Comes in a hard, see-through plastic case for portability and easy storage and transport. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B00PCSNRX2 | | Best Sellers Rank | #293,715 in Office Products (See Top 100 in Office Products) #191 in Drafting Compasses | | Brand | ALVIN | | Customer Reviews | 3.5 3.5 out of 5 stars (29) 3.5 out of 5 stars | | Date First Available | November 7, 2014 | | Item Model Number | 6" Pro Speed Bow Compass w/ Beam Bar | | Item Weight | 4.5 ounces | | Manufacturer | ALVIN | | Manufacturer Part Number | 205V | | Material Type | Zinc Alloy | | Number Of Items | 1 | | Product Dimensions | 8 x 3 x 0.75 inches | ## Images ![ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch - Image 1](https://m.media-amazon.com/images/I/815hHZfoZPL.jpg) ![ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch - Image 2](https://m.media-amazon.com/images/I/61aco86pBrL.jpg) ![ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch - Image 3](https://m.media-amazon.com/images/I/81xa38vryKL.jpg) ![ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch - Image 4](https://m.media-amazon.com/images/I/71RMcfXAlRL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ product *by on Reviewed in the United States August 26, 2025* perfect and case good to store ### ⭐⭐⭐ Disappointed *by on Reviewed in the United States August 3, 2025* Difficult to operate, but that's probably user error. I thought I could attach different writing utensils to this such as permanent fine liner pens but unfortunately I can not. It's the whole reason why I purchase it. ### ⭐⭐ What a disappointment *by on Reviewed in the United States July 10, 2019* It's really hard to find a compass made these days like old school quality - this one isn't horrible but it's not that good either. I did a lot of online research looking for something good that wasn't a simple bow/divider type, and this looked like a decent bet. Most disappointing is that while still being made in Germany, it is about 95% plastic, and frankly the choice of plastic and some design elements makes it a weakness for all but the most gentle use on smooth surfaces. The legs are NOT metal, they are channeled plastic. The only metal pieces are the clamp nuts, center point, transverse screw, and the two screws holding the head/gears. 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 (except for the most gentle non-pressure use and even then it's iffy) - if you attempt to overtighten them you run a real risk of stripping out the small and fine plastic threads. The same is true on the clamps for point and lead, and those don't look like they will last long at all..too soft, too fine, and the nut is super easy to cross thread (I have flipped the nuts upside down and that seems to be easier to get them started correctly, still clamps fine). I may carefully file some of the articulating joint surfaces so that I can have one or two "settings" where the legs have a chance of staying put - as it is, the surface is smooth and rounded, so contact of the clamp nut to the leg body is greatly reduced and just can't be tightened enough. Again, very poor design there. The beam is metal and seems stiff enough by itself - the universal clamp is nice and easily holds any normal pen and a few varieties of Sharpie markers. 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 holding places easily...have to slip in the transverse screw below the beam when you pack everything up (if you use the case for storage). I'm actually undecided as to whether I should return this or keep it but I feel a little duped and sorry I purchased it. Probably should have gone half the price with the $10 Mr. Pen model because this literally offers nothing better. So...not the worst compass and within usual drafting "light duty" application it should be mostly fine, but if you want higher quality it's probably best to look on ebay for old used instruments unless a metal machinist's/woodworker's model will work for you. ## Frequently Bought Together - ALVIN Compass Pro Speed Bow with Beam Bar 6" Model 205V Compass for Geometry and Engineering, Included Beam Bar Allows for Drawing Large Circles, Drawing and Architecture Tool - 6 inch - SAKURA Pigma Micron Fineliner Pens - Archival Black Ink Pens - Pens for Writing, Drawing, or Bullet Journaling - Assorted Point Sizes - 6 Pack --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/27355485-alvin-compass-pro-speed-bow-with-beam-bar-6-model](https://www.desertcart.at/products/27355485-alvin-compass-pro-speed-bow-with-beam-bar-6-model) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-10-29*