Customer Reviews for VEVOR 8Pcs CAT40 Tool Holder ER16 Collet Chuck Set length 70mm Chuck Tool Holder Set Mill Holder for CNC Engraving Machine Milling Lathe(CAT40 ER16 70mm)

Received set and there was a duplicate of one size and an absence of another. Notified seller and they promptly remedied the situation. Nice set of collets which work fine on my manual milling machine.

This collet set is pretty good quality for a hobbyist level. I have checked six collets with a good dial indicator and the runout is between .0003 and .0012, plenty good for what I do in my home shop.

hold tight, good runout

I haven’t had a chance to use this tool yet but delivery was sooner than expected and tool looks well madeJerry S.

Okay product

Great tool, great price.

This is a very nice drill chuck for my semi-production Hass CNC toolroom mill. I'll be buying another! Now that I've used it a few weeks, I prefer it over trying to mount a drill bit in a collet. I'm reserving the collets for larger bits and a couple of end mills that I use regularly.

It came with an "A style" retention knob, not the one pictured when I bought it, which was convenient because that's the style I wanted. It does have noticeable runout. I'm not sure how much of it was in the spindle so I won't tell my reading, but it was significant. I can run .020" diameter end mills with this spindle, no problem, so it's safe to say that the spindle runs pretty true. With a 3/8 diameter edge finder in the chuck and a good eye, you can see the runout. But for the price I didn't expect it to be close, and I bought it just to use for edge finders and indicators, so I'm happy with it (runout is practically irrelevant with the way edge gyroscopic edge finders work). The description said not to use it for small drills, so they are being upfront and honest about the product. Locking and unlocking is very smooth, especially after giving it a shot of lube. I'm amazed that they can produce a product of this quality for such a low price.

As luck would have it, the stud supplied was correct for my Hurco VMC, not as shown.It is perfect for r&d work where you switch drills mid part.Runs true up to 10k on my machine.I will order more shortly.Repeat order for 2 more key less chucks came with 1 missing.Seller sent second one. It took time, but seller made good in the end.

very good and helpful. i like the understanding from the vendor. thank you OrangeA