Best collets for the Redline Spindle

Onefinity Spindle Kit by Redline CNC
1

I just set up my spindle and am awaiting my tool changer. I need to acquire some collets for the ATC. They are ER20 collets, but I don’t know if I can just order them off of amazon or if there is a better place to get them. Any advice would be great.

2

I have ordered collets off of Amazon and they were fine with one exception…

One of them had some chips from the machining in the slots so they wouldn’t grab my bits properly…I was able to clear the chips and it’s fine now but take a minute to inspect them closely.

FWIW, I ordered some balanced collet nuts from Avid CNC and they are very nice…really well machined and finished.

Craig

3

Thank you for the info Craig.

4

eBay, look up this store: Hemly Tool Supply of CT
They sell Techniks collets with high accuracy T.I.R of .0002"
I bought ER11 for my 65mm spindle and right away you could feel the difference just buy inserting the bits, the fit is very snug. Highly recommend those if you want a premium quality.

5

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My Redline spindle recently jammed up because I failed to double check the vendor’s default settings on their end mill. Augh! I am adding a couple links to this thread to assist others on their collet journey.

Avid CNC Collets and Nuts

Techniks Precision ER20 Collet

Tips by Cutting It Close on YouTube

Closing Note: Since writing this post I’ve used both collets listed here, and they each delivered excellent performance. That said, the Avid CNC collet stood out—it felt like a definite upgrade compared to the one that came with the Redline spindle. If you’re deciding between the two, I’d recommend going with the Avid CNC.

6

I like the collets and nuts from PWNCNC

7

Thanks for the tip. Pwncnc carries both standard quality and high precision collects and nuts, although currently out of the better nuts.

8

I use McMaster-Carr for a lot of things but they have a cheap grad (5100 tool steel $23.00) and a High end grade (Hardened Chrome-Moly Steel $57.00). Their prices are mostly fair for the stuff you can buy there. Great on line store for all kinds of tools, cabinets and just about anything you would need in a shop or business.

This is just another place to get stuff and compare prices to, some stuff is reasonable and other stuff a bit pricey.

Cheers

Joe