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QWORK ER20 A Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black)

4.4 (13) Write Review
Free shipping on orders over $29.99

$9.97

$ 4 .99 $4.99

In Stock

1.:Er11-a


2.Color:4 Pack


About this item

  • Package Content: Includes 4 x M25 ER20A clamping nuts.
  • Model: ER20 A, Material: 40CR steel and black oxide finish. Precision ground and hardened.
  • Feature: After precision grinding and hardening, the hex nut can be a great replacement for the broken part and can fit most tool holders.
  • Suitable for: The hex nut can work with ER type tool handle, boring cutter, tool bar, extension bar nut holding drill bit and other tools.



Gilberto Peretto
Reviewed in Italy on March 4, 2025
Andavano bene, ottima costruzione.
FlatlineYourBird Series Decoys LLC
Reviewed in the United States on February 17, 2025
Great Product, fits and works perfect at a competitive price.
Eric Mason
Reviewed in the United States on September 28, 2024
These er20 collets fit perfectly on my spindle with no run out. Thanks for that. Great value for the money
khitchens
Reviewed in the United States on August 28, 2024
Used on a Next Wave CNC 2HP spindle. Ran true, with no issues. Just as good as the one that came with the spindle.
John Hall
Reviewed in the United States on July 6, 2024
the run out on these were over .020 so not useful for accurate work fine for roughing out.
Peter-Fürth
Reviewed in Germany on July 16, 2024
Ideal um nicht dauernd, beim Wechsel, die Spannzangen herauszubuhlen.
Tamela S.
Reviewed in the United States on June 30, 2024
Great product
Robert Guyser
Reviewed in the United States on May 19, 2024
Michael Geurtsen
Reviewed in the Netherlands on March 15, 2024
Sceptical of a previous review by a user of this product I held off on testing these as they claimed to be unballanced.To my surprise these ER20 nuts are very well balanced and nothing of it is "off center" other then the intended design of this nut.Running at 24000 RPM without a single issue and would buy again in my books!
Franco
Reviewed in Italy on February 16, 2024
materiale ok e rapidissimo grazie
Matt F
Reviewed in the United States on November 3, 2024
Bought these for a Nextwave CnC router. Fits the spindle and works as well as the OEM holder.
RSED
Reviewed in the Netherlands on October 21, 2024
Product voldoet aan de verwachtingen.
Kevin C
Reviewed in the United States on January 27, 2024
I got tired of swapping collets out of my one spindle nut so I bought these. Now I just leave each size collet in it's own spindle nut. Definitely speeds up tool changes.I did see other reviews complaining about the inside machining was off center. Mine too was off center and for half a minute thought I'd have to return them. But then I inserted a collet and instantly realized the purpose. That off-set hole allows for much easier removal of the collet from the spindle nut. Checked the tool bit with a dial gauge in the spindle and it was right on.My only one complaint is the hex nut shape is a little smaller than the original and my wrenches slip off sometimes but all I need to do is slow down and it's fine.