🔩 ER20 Precision Collets — Available in 1/8", 1/4", 3/8", 1/2" and 6mm Sizes
Unlock the full potential of your CNC spindle with our ER20 Precision Collets, built for serious performance and long-term reliability. Whether you’re cutting hardwoods, composites, or plastics, these collets deliver rock-solid grip and exceptional balance at any speed.
Features: • Precision Fit – Designed for CNC bits with 1/8", 1/4", 3/8", 1/2" or 6mm shank sizes, ensuring an exact and secure hold. • Premium Spring Steel Construction – Crafted from high-grade spring steel for superior flexibility, strength, and balance during high-speed operation. • Ultra-Low Runout – With a maximum runout of 0.0002" (0.005 mm), these collets deliver unmatched accuracy, reduce chatter, and improve surface finish. • Extended Tool Life – Less vibration means longer-lasting bits, smoother cuts, and reduced spindle wear. • Universal Compatibility – Fits all standard ER20 collet chucks, making it a reliable choice for both hobby and industrial CNC setups.
Perfect For: CNC routers, milling machines, and spindles using ER20 systems that demand precision and consistency.
Customer Reviews
Overall rating: 4.9 / 5 from 3843 reviews.
Great service and a quality product.
Your attention to these qualities assure our continued business.
I submitted a prior review for the 250th file and clock kit. I just have to brag a little bit because I submitted the clock to the Twin Falls County Fair and won First Place and Best of Class for Fair Theme Woodworking!
Thank you CIC Workshop for helping develop the skills I needed (along with the files, materials, bits, and kits) to achieve this!
I love this BamX. I only wish they offered more choices and made the outside layers thicker. I have so many more ideas but I am limited because of the thickness of the outer layers. Even a reverse of the colors (light, dark, light).
I loaned a new Shapeoko 5.1 Pro CNC router to TekVenture Makerspace last winter, but only recently had time to start using it for some of my projects. One of the first has been thank you plaques for donors to Scouting America projects. I found that the BT275 - 3/4'' X 5/8" Bowl & Tray bit with - 1/4" Shank did a great job of making smooth, nicely shaped backgrounds for the artwork. The bit cuts very fast and very smooth. I usually do a light 320 grit sanding between bit changes to remove the faint path marks. But that is minimal. This bit saves a lot of time and make beautiful product.
It had a few blemishes voids in the wood I wanted to fill didn’t realize epoxy would spread so far with end grain didn’t care for that but other wise it turned out good
It cuts plastic like a hot knife through butter. I had to order one online in a pinch that was a dull dog and had to abandon the project when the CIC beast showed up! The next day.Note to future Greg when ordering bits order 2…
“ 1 is none, 2 is 1 theory”
Worked like a dream. Very true to flat and having the ability to change cutters versus purchasing a whole new bit every time allows for years of use from this one purchase. Well worth the money!
I bought this, for one I needed a new flattening bit for my surface board and second it was cheaper than a drum sander. I need to sell a few more boards before getting that sander. This bit did an awesome job. I used it to flatten my cutting board and it left a great finish. I think I could have went straight to 120grit and skip 80. I didn’t, but sanding with the 80 was much faster than before. If you need a flattening bit this is a great bit. I’m using it in a makita router for a spindle.
This was my first kit. The files were perfect, the instruction video walk me through every step of the process The results came out better than expected. I just ordered two flag kits. Am very happy with the results of the maze.
I and my customers love the domino game set. However some customers have asked if I have cribbage boards.
So I added to the outside of both halves a cribbage board protected with acrylic.
Thank you
Andy roff
These are truly the best bits I have used. I have used a lot of more expensive and brand-name bits, but these are hands down my favorite. THANK YOU, Ryan!
Thanks to Ryan's YouTube video on doing V Carve Inlays, I have done over 40 inlay projects using your 30 degree "V" carving bits.
This project below is a Floating Plaque that I just gifted to a local center that offers free services to cancer patients. It is held up by concealed magnets and anchored down at the bottom with fishing line.
As they are having a fund raising event I have also donated the Marble Maze game and the spalted sycamore end grain cutting board that I purchased from CIC
The Kin logo and the Welcome To Kin are V Carved Inlays and the Heart & Hands are regular Inlays. The white text is done with white wood filler.
Thanks again to Ryan for his great V Bits and for sharing a lot of CNC woodworking tips to us hobbyist.
Much Appreciated.
Mark Barr
I wanted to try my hand at something new and I ordered a 30 pack of mixed hardwood. The shipment was quick and the wood was perfect. Thanks again and I look forward to buying more.
The 60 degree .5 width worked really well. I look forward in using it with other projects in the near future. It left a smooth cut where sanding or clean out was very simple. Great bit.
I decided to set the beak and flag flush with the black portion. The stripes sit proud of the white and it looks great! Customer support was excellent when I screwed something up and needed another sheet.
Use my first Bamx sheet to make these throw trays for a local fire department.
Cut clean finished well.
Have another project planned for christmas trays with the second sheet I purchased.
