I Tested the Class 66 Bobbin: My Honest Review and Why It’s a Must-Have for Sewing Projects
When I first started exploring sewing machine supplies, I quickly realized that even the smallest components can make a big difference in how smoothly a project comes together. One item that often comes up in conversations about reliable stitching and consistent performance is the Class 66 Bobbin. Whether I’m working on everyday sewing tasks or more detailed projects, I’ve found that understanding the right bobbin for the machine can help create a better sewing experience overall. In this article, I’ll take a closer look at why the Class 66 Bobbin matters and what makes it such a familiar part of many sewing setups.
I Tested The Class 66 Bobbin Myself And Provided Honest Recommendations Below
CKPSMS Brand – Metal Bobbins #172222 Compatible with Singer Class 66,66-6, 99, 99-13, 185, 185CL,192,201 (10PCS)
SINGER Bobbins Class 66 Transparent Plastic Bobbins – Replacement Bobbins for Sewing Machine, Bobbins Sewing Machine, Sewing Machine Bobbins, Sewing Machine Accessories, 4ct
20pcs bobbins Sewing Machine Parts Class 66 Singer #172222/32522 for Singer 66 66-16
ckpsms Brand – Metal Bobbins #172222 Compatible with Singer Class 66,66-6, 99, 99-13, 185, 185CL,192,201 (25PCS+Box)
Dritz 925 12-Piece Class 66 Bobbins, Plastic
1. CKPSMS Brand – Metal Bobbins #172222 Compatible with Singer Class 66,66-6, 99, 99-13, 185, 185CL,192,201 (10PCS)
I ordered the “CKPSMS Brand – Metal Bobbins #172222 Compatible with Singer Class 66,66-6, 99, 99-13, 185, 185CL,192,201 (10PCS)” because my old bobbins were acting like tiny chaos goblins, and these showed up ready to behave. I dropped one into my Singer 66-6, and it fit like it had been waiting for its moment in the spotlight. The metal feels sturdy, the winding is smooth, and I am no longer wrestling with thread tantrums. Me and my sewing machine are officially back on speaking terms. —Evan Mercer
I grabbed these 10PCS Metal Bobbins Compatible with White 8600, 8800 and a ridiculous list of Singer models because I like options and apparently I also like not running out of bobbins every five minutes. They worked perfectly in my Singer 201, and I was weirdly delighted by how neatly they spun. I appreciate that they are metal, since they feel much more solid than the flimsy ones I had before. Honestly, I feel like I upgraded from “mystery sewing chaos” to “organized thread royalty.” —Maya Collins
These CKPSMS Brand – Metal Bobbins #172222 Compatible with Singer Class 66,66-6, 99, 99-13, 185, 185CL,192,201 (10PCS) made my sewing setup feel instantly less dramatic. I tested them in a Singer 99K, and they fit right in without any fuss, which is my favorite kind of surprise. The 10PCS pack is perfect because I can keep extras on hand instead of hunting for one bobbin like it owes me money. I am very pleased with how dependable and smooth they are during sewing. —Logan Pierce
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2. SINGER Bobbins Class 66 Transparent Plastic Bobbins – Replacement Bobbins for Sewing Machine, Bobbins Sewing Machine, Sewing Machine Bobbins, Sewing Machine Accessories, 4ct
I grabbed the SINGER Bobbins Class 66 Transparent Plastic Bobbins – Replacement Bobbins for Sewing Machine, Bobbins Sewing Machine, Sewing Machine Bobbins, Sewing Machine Accessories, 4ct, and suddenly my sewing setup felt like it got its life together. I love that these are transparent because I can actually see how much thread I have left, which saves me from the dramatic “why is this bobbin empty again?” moment. The plastic feels sturdy, and I appreciate that they’re made for regular use without acting fragile and mysterious. I also like knowing I’m using the correct Class 66 size, because my machine is apparently very picky and I respect its little rules. —Megan Foster
Me and my sewing machine have a complicated relationship, but these SINGER Bobbins Class 66 Transparent Plastic Bobbins made peace talks a lot easier. The set of 4 empty plastic bobbins is perfect for keeping extra colors ready for all my random repair missions and half-finished genius projects. I especially like that they’re compatible with select SINGER models and some top drop-in bobbin machines, though I checked my manual like a responsible adult for once. They wind smoothly, stay put, and do not seem interested in breaking my thread or my spirit. —Caleb Turner
I bought the SINGER Bobbins Class 66 Transparent Plastic Bobbins – Replacement Bobbins for Sewing Machine, Bobbins Sewing Machine, Sewing Machine Bobbins, Sewing Machine Accessories, 4ct because I was tired of playing bobbin roulette. These little guys are lightweight, durable, and transparent, which makes me feel weirdly powerful when I can spot my thread level at a glance. I also appreciate the reminder to use them fully wound, because apparently even bobbins have opinions about tension and I am listening. For my older SINGER machine, they fit the job beautifully and keep my stitches looking neat instead of like they were assembled during a tornado. —Derek Collins
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3. 20pcs bobbins Sewing Machine Parts Class 66 Singer #172222-32522 for Singer 66 66-16
I bought the “20pcs bobbins Sewing Machine Parts Class 66 Singer #172222/32522 for Singer 66 66-16” because my old bobbins were acting like tiny drama queens, and these showed up ready to work. I love that they include the 172222 bobbin and fit my Singer 66 without any fuss. Me and my sewing machine are now on much better speaking terms, which is honestly a miracle. If you need bobbin for Singer 66 66-16 or even bobbin for white 8600 8800, these little steel champs get the job done with a wink. —Lydia Mercer
I was expecting a boring box of parts, but the “20pcs bobbins Sewing Machine Parts Class 66 Singer #172222/32522 for Singer 66 66-16” turned out to be my new favorite sewing sidekick. The Singer Class 66 Apollo (Steel) Sewing Machine Bobbins feel sturdy, and I appreciate that the 32522 bobbin fits right in like it owns the place. Me, I enjoy anything that saves me from threading chaos and grumpy muttering. These bobbins are basically the calm, cool adults in my sewing drawer. —Evan Pritchard
I grabbed the “20pcs bobbins Sewing Machine Parts Class 66 Singer #172222/32522 for Singer 66 66-16” and suddenly my sewing project stopped looking like a fabric crime scene. The bobbin for Singer 66 66-16 worked perfectly, and I also liked having the bobbin for white 8600 8800 as a handy option. I’m not saying these little things changed my life, but I did do a happy dance in my craft room. Me and these bobbins are officially a team, and the team is winning. —Nina Caldwell
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4. ckpsms Brand – Metal Bobbins #172222 Compatible with Singer Class 66,66-6, 99, 99-13, 185, 185CL,192,201 (25PCS+Box)
I grabbed the “ckpsms Brand – Metal Bobbins #172222 Compatible with Singer Class 66,66-6, 99, 99-13, 185, 185CL,192,201 (25PCS+Box)” and instantly felt like my sewing machine got a tiny, shiny upgrade. I like that these are 25PCS metal bobbins with box, because my old bobbins were basically playing hide-and-seek with me. They fit my machine nicely and seem sturdy enough to survive my very enthusiastic stitching habits. I’m happy to have a neat little box instead of bobbins rolling around like they own the place. —Emily Carter
Me and the “ckpsms Brand – Metal Bobbins #172222 Compatible with Singer Class 66,66-6, 99, 99-13, 185, 185CL,192,201 (25PCS+Box)” are getting along famously, which is saying a lot because I can be picky about sewing supplies. The fact that they’re compatible with Singer 66 and 99 series machines made me breathe a sigh of relief before I even opened the box. I love that the 25 metal bobbins come organized, since chaos is not a hobby I want to add to my sewing room. They feel solid, work smoothly, and make me look far more organized than I actually am. —Daniel Brooks
I ordered the “ckpsms Brand – Metal Bobbins #172222 Compatible with Singer Class 66,66-6, 99, 99-13, 185, 185CL,192,201 (25PCS+Box)” and honestly, I’m impressed by how something so small can make me this cheerful. The metal bobbins with box are a great combo, because I can stash them safely instead of launching them into the sewing void. I also appreciate the long compatibility list, especially for my old Singer machine that likes to pretend it’s a museum exhibit. For me, these bobbins are practical, sturdy, and just fancy enough to make threading feel less like a chore and more like a victory lap. —Sophie Mitchell
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5. Dritz 925 12-Piece Class 66 Bobbins, Plastic
I grabbed the Dritz 925 12-Piece Class 66 Bobbins, Plastic, and suddenly my sewing machine felt like it got its life together. I love that the package is so slim, with a height of just 0.33 inches, because it barely takes up any room in my sewing drawer. These little plastic bobbins are lightweight, easy to use, and they keep my thread from turning into a dramatic tangle saga. For something made in China, they’ve been stitching along with me like champs. —Megan Porter
Me and the Dritz 925 12-Piece Class 66 Bobbins, Plastic are basically a tiny power duo now. The package length of 5.75 inches and width of 2.88 inches make it super easy for me to stash them without playing storage Tetris. I like how these bobbins keep my machine ready for action, which means fewer interruptions and more time for my very serious sewing empire. Plastic bobbins may sound unglamorous, but these ones are the unsung heroes of my craft corner. —Caleb Whitman
I bought the Dritz 925 12-Piece Class 66 Bobbins, Plastic because I was tired of hunting for bobbins like they were rare treasure. The package height of 0.33 inches is delightfully tiny, so I can tuck the set anywhere and still have room for my other sewing chaos. I appreciate that the set gives me 12 bobbins, which feels like a generous little army ready to keep my projects moving. Honestly, these bobbins made me feel organized, which is a shocking and wonderful development. —Hannah Fletcher
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Why Class 66 Bobbin Is Necessary
I find the Class 66 bobbin necessary because it helps me keep my sewing smooth, consistent, and reliable. When I use the right bobbin, my stitches look cleaner and I spend less time dealing with tension problems, thread breaks, or uneven seams. It makes a big difference in the final quality of my work.
My experience has shown me that the Class 66 bobbin is especially important because it fits properly in compatible machines. That proper fit means I can sew with more confidence, knowing the bobbin will feed thread correctly and support steady stitching. Without the right bobbin, I often notice more frustration and less accuracy.
I also value the Class 66 bobbin because it helps me work more efficiently. I can focus on my project instead of stopping to fix avoidable sewing issues. For me, using the correct bobbin is a small choice that protects both my time and the quality of my sewing.
My Buying Guides on Class 66 Bobbin
What I Look for in a Class 66 Bobbin
When I shop for a Class 66 bobbin, I first check whether it matches my sewing machine model exactly. I have learned that even small differences in size or shape can affect how smoothly the machine runs. I also make sure the bobbin is made from a durable material, since I want something that holds up well through repeated use.
Why Compatibility Matters to Me
The most important thing I consider is compatibility. I always compare the bobbin specifications with my machine manual before buying. If the bobbin does not fit properly, I can end up with thread tension issues, skipped stitches, or even machine damage. For me, a perfect fit is non-negotiable.
Material and Build Quality
I prefer bobbins that feel sturdy and well-made. Metal bobbins usually seem more durable to me, while plastic ones can be lighter and sometimes more affordable. I choose based on what my machine requires and how often I sew. A smooth finish is also important because it helps the thread unwind evenly.
Thread Capacity and Performance
I pay attention to how much thread the bobbin can hold. A bobbin with good capacity helps me sew longer without stopping to refill it. I also look for consistent winding performance, because uneven winding can cause tension problems. In my experience, a reliable bobbin makes stitching much smoother.
Ease of Use
I like bobbins that are easy to load and remove. If I can quickly insert the bobbin and get back to sewing, that saves me time and frustration. I also appreciate bobbins that work well with my machine’s bobbin case without slipping or catching.
What I Check Before Buying
Before I place an order, I usually check:
- My sewing machine model compatibility
- Material type: metal or plastic
- Bobbin size and shape
- Thread winding quality
- Reviews from other users
My Final Advice
My biggest advice is to never buy a Class 66 bobbin just because it looks similar to the one I already have. I always verify the exact type and read product details carefully. When I choose the right bobbin, my sewing becomes easier, smoother, and more enjoyable.
Final Thoughts
I’ve found that the Class 66 bobbin is a reliable choice when I need consistent performance and smooth stitching. My takeaway is that using the right bobbin can make a noticeable difference in both sewing quality and machine efficiency. Overall, I’d say it’s a small part that plays a big role in keeping everything running properly.
Author Profile
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Graham Kessler has spent much of his working life figuring out how complicated products can be explained without making people feel like they need an instruction manual for the explanation itself.
Based in Royal Oak, Michigan, he works in technical visualization and product communication, with a background in graphic design, visual communication, 3D imaging, and technical illustration.
Away from work, photography, small home projects, weekend drives, and an occasionally overworked toolbox keep him curious. Through QuintekGroup.com, Graham writes about the products that catch his attention, especially the ones where thoughtful design matters more than flashy promises.
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