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)

I own a welding shop in Derby Kansas and I own three of these chucks. They run mostly R&D work in my Haas CNC mill. Well yes of course they have some run out but it's not excessive. Your mileage may vary and the run out will probably vary depending on what day of the week and the temperature of the Chinese Sweatshop these were made in. Fact of the matter is, it's a bargain price cat 40 chuck and if that's what you want it does a great job at this price point. If you're running Aerospace parts on a million dollar machine you're definitely not looking at drill chuck that cost less than $100 on amazon. These are perfect for using with Edge Finders and general drilling applications. If you need to be that spot on then invest in a quality chuck or collet holder.

When the package arrived the box was broke open and shipper had to repackage with clear bag and note to make sure all items were in bag. The retention knob was missing but I don't need them for my machine. other than that it is a great product.

I've used two of collets, and am very satisfied with their quality.

I’m not a machinist, I wanted a collet system for my new Nova DVR drill press. I tried them with some light machine work to make a couple of vise clamping heads, worked good.

As an addition to my tool collection, works great. I may buy another set.

These are great for the price!

Arrived on time and the set looks like a great deal for the money. Have not used them yet but the quality looks good.

I was super impressed by these toolholders. An amazing balance of quality, standard tool selections and price. The finish on these is amazing, and everything fits together very well.Unfortunately, I need to return them. CAT40 was an optional upgrade for my machine and the seller I bought it from was misinformed on the size. Really wishing there was an equivalent package for BT40, - this seller would have my money instantly. Unfortunately, the selection for BT40 tool holders is challenging at best.I'd heartily recommend these to anyone who has a CAT40 machine with no regrets.

The quality of these holders was far better than i expected the collets exceeded some of the major brands that I have worked with in the past .

The price was more than fair