Happybuy 4 Inch ACCU Lock Down Vise Precision Milling Vise 4 Inch Jaw Width Drill Press Vise Milling Drilling Machine Bench Clamp Clamping Vice(4")

I bought the 4” and this little guy punches way above its price point. Packing grease cleaned up easily. I actually had to mount it twice. It comes with slot keys that were too wide for my mill table slots. So I mounted and trued it up. Then milled off .020” off each side of the keys. ( only the potion that’s in the slots). I removed the vise and installed the keys. It fit the slots perfect.I then reinstalled it again. I was able to dial it in to less than .0002” runout side to side. I then milled a slot in a scope base. This vise held the part secure and the slot came out perfect.I highly recommend this vise. I’m using it on Grizzly G0759 bench mill.

great milling machine vise for the cost . have 3 of them in differant sizes

Really good for the price. Wish I could afford a “Kurt,” but I can’t. And as a hobbyist, I would be overkill. For the price, I could give it five stars, but I took one off due to the need to take it completely apart to clean and file (or sand) down the razor sharp edges. I knew this was needed from watching YouTube reviews. I’m sure this is one of the ways they keep the price down. I used a good test indicator across the machined surfaces and it checked out very well. Vice jaw opening is more than advertised and I the rear jaw can be moved to the back to hold a piece around 12 inches. This is not just a “first impression.” I have used it on my “old but rebuilt” Bridgeport J-head mill, and am pleased with its performance. My only complaint is the sloppy handle. The socket end fits fine. It is the pivot part that is sloppy. I’m sure all the lesser priced vise manufacturers buy the same sloppy vice handle for a couple of dollars. I will either make a new one, or buy one of the combo speed handles. Don’t let that deter you. The handle is functional, just not the quality I want, but the vice is still a great value.

The 6" vise is surprisingly good for $100. It's definitely no Kurt DX6, but it's almost 1/7th the cost.A couple things to note though:The bottom edges and jaws have some very sharp edges. I hit all bottom edges with a quick file to get things a little safer. I'd recommend stoning the bottom too, if you have one, after the filing. The jaws are also very sharp, and got a similar treatment.A very important observation, this vise is not compatible with standard 6" jaws that would work with Kurt vises. The attachment bolts are M8 instead of 1/2" and are positioned too low to use other jaws without modifying the other jaws. I needed to make some custom soft jaws for this vice, the Kurt ones just will not fit.Finally, the hex for the handle on the leadscrew is not a standard 3/4", rather it appears to be larger, more like 20mm. This doesn't matter too much except my other vise handles and speed wrenches won't fit.I ended up removing the leadscrew, champing it in vise jaws I have for machining hex bar stock, and brought the size down to a proper 3/4" so all of my other wrenches fit. I'm not sure if all of these are like this or just the one I received.Overall, I'm very happy with this vise. Very surprised. I'll update this if I see any issues with longevity.

I wouldn't trust it on a CNC machining center, but it works very well on a bench

I have a Kurt DX6 That is my primary vise on my bridgeport but I needed to steal it to use for a setup on my CNC that has Saunders vises that were just too small for what I needed. After the CNC was setup and running I ended up needing to run a job on the bridgeport but had no vise. So I took a chance on this one for $100. You dont get much for $100 these days and I was expecting garbage. I'll start out by saying this is no Kurt... But... its astonishingly not bad. It did arrive with sharp edges like other reviewers said, and I had to file and stone it right out of the box. The screw needed some oil and the whole thing just needed to be cleaned up a little bit. Once that was done I mounted it on the mill and threw up my indicator. Tapped it around and got the vise within .001" X Y and Z. Jaws come together perfect and you can put some weight on the vise handle to clamp something down. Does what it needs to do and does it pretty well. The only thing I dont like is that the mounting slots are about .820" wide, which makes it awkward to mount with 1/2" studs but still doable with some heavy washers. All in all, like I said, astonishingly not bad for $100.