QWORK ER11-M Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black)
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Selected User Reviews For QWORK ER11-M Collet Clamping Nuts for CNC Milling Chuck Holder Lathe, 4 Pack (Black)
There are two openings inside the top circle that are completely out of round. There were holes both in the delivery and product bags, the delivery bag was partially tapped closed and 1 collet was missing. The remaining 2 of the 4 collet are completely useless, the holes don't align to the top and bottom holes at all. One of the four is close but not true and turns out to be in the wrong position.
The purpose of buying this was so I would not have to change collet sizes every time a bit was changed. Like the OEMs, these screws also attached exactly like the originals. As a result, all you need to do is swap bits.
When I change bits using this, I only need to remove the collet nut, which makes swapping bits easy. I can go between 1/4 and 6mm by simply unscrewing the collet nut.