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

4.9 (26) Write Review
Free shipping on orders over $29.99

$9.97

$ 4 .99 $4.99

In Stock

1.Color:4 Pack


2.:Er11-a


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.


Product Description

Product Name Collet Clamping Nuts
Material 40CR Steel
Model ER20 A
Hole Diameter 1"
Overall Size(Approx.) 35mm x 20mm
Color Black
Package 4 Pack

QWORK

Specification

Model: ER20 A, Material: 40CR steel and black oxide finish. Precision ground and hardened.

Feature

Feature

After precision grinding and hardening, the hex nut can be a great replacement for the broken part and can fit most tool holders.

USAGE

Application

The hex nut can work with ER type tool handle, boring cutter, tool bar, extension bar nut holding drill bit and other tools.


FlatlineYourBird Series Decoys LLC
2025-08-30 20:38:01
Great Product, fits and works perfect at a competitive price.
Matt F
2025-08-19 10:51:04
Bought these for a Nextwave CnC router. Fits the spindle and works as well as the OEM holder.
khitchens
2025-08-15 18:31:16
Used on a Next Wave CNC 2HP spindle. Ran true, with no issues. Just as good as the one that came with the spindle.
Kevin C
2025-07-31 18:50:58
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.
Eric Mason
2025-07-20 14:43:22
These er20 collets fit perfectly on my spindle with no run out. Thanks for that. Great value for the money
Robert Guyser
2025-07-16 13:47:35
FlatlineYourBird Series Decoys LLC
2025-07-12 15:41:33
Great Product, fits and works perfect at a competitive price.
Matt F
2025-07-09 18:22:52
Bought these for a Nextwave CnC router. Fits the spindle and works as well as the OEM holder.
khitchens
2025-07-06 15:02:13
Used on a Next Wave CNC 2HP spindle. Ran true, with no issues. Just as good as the one that came with the spindle.
Kevin C
2025-07-03 19:18:23
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.
Eric Mason
2025-06-08 14:16:44
These er20 collets fit perfectly on my spindle with no run out. Thanks for that. Great value for the money
Robert Guyser
2025-06-03 15:54:35
John Hall
2025-06-02 20:28:36
the run out on these were over .020 so not useful for accurate work fine for roughing out.
Tamela S.
2025-06-01 13:44:57
Great product
Gilberto Peretto
2025-05-28 10:39:38
Andavano bene, ottima costruzione.
RSED
2025-05-16 16:43:21
Product voldoet aan de verwachtingen.
Peter-Fürth
2025-05-03 16:17:34
Ideal um nicht dauernd, beim Wechsel, die Spannzangen herauszubuhlen.
Michael Geurtsen
2025-04-20 09:01:59
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
2025-04-06 10:29:14
materiale ok e rapidissimo grazie
John Hall
2025-03-22 11:44:12
the run out on these were over .020 so not useful for accurate work fine for roughing out.
Tamela S.
2025-03-14 17:39:28
Great product
Gilberto Peretto
2025-03-12 14:55:43
Andavano bene, ottima costruzione.
RSED
2025-03-06 15:37:17
Product voldoet aan de verwachtingen.
Peter-Fürth
2025-02-24 10:16:59
Ideal um nicht dauernd, beim Wechsel, die Spannzangen herauszubuhlen.
Michael Geurtsen
2025-02-12 11:44:05
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
2025-02-08 13:35:08
materiale ok e rapidissimo grazie