Genmitsu Upgrade Aluminum Bench Vise Clamp, High-Precision CNC Router Clamp for Unique Shaped Woodworking & Metalworking Milling Project, Size 9.4" x 6.6" x 1.6", Clamping Range 0-5.7"

Works great! I like the quality, and I like that it has a hex wrench that is separate from the knob, which makes it easy to do a final tighten quickly because you can finely twist the knob with your hands and then do a quick final tighten with the hex wrench instead of having a clunky hex wrench permanently installed. The one thing that’s definitely missing from this is that sliding metal piece from the previous version of this model, where you can quickly move the metal piece sort of as a corner stop/locator so you can keep placing parts in the exact same spot. This does have a stopper/block at the very end, but it doesn’t have a sliding one. The problem with the fixed stopper that comes with this unit is that if you have a small piece to clamp, and you try to clamp it in that very left corner, well the clamping force presses against the piece unevenly, and so my tiny piece gets mounted slightly crooked. If you’re able to mount your tiny piece closer to the center of the clamp, it gets clamped very nicely. So I basically 3D printed the same stopper that came with the previous model. (You can look up the previous model to see what I mean). But overall I like the quality and am glad I bought this for my CNC!

This turned out to be a very high-quality vice which sped up my production by making it easier to change out wood and be exactly aligned where I wanted to be. It holds securely and accurately very happy.

Good for the price, but make sure you center your workpiece. Brass nut is not optimal, but works well enough. My first time using this vise cost me a block of aluminum and an endmill because i used the stop to locate my 2” wide workpiece. The clamp flexed subtly and was only on tight on one side. The stock rolled when cutting from the looser side. Now i use setup blocks to locate the workpiece over the screw and it works just fine.

I have two of these now. I mounted then side by side on my 3030 prover max. I had to grind the sides a little, and finesse where I bolted it. However, having two in has been really great. I get good coverage across the width of the bed. Also, having two vices allows me to clamp irregular shapes more easily. In the photo, the block is milled to the height of the vise so I can use the touch probe even when the vise is full and to find the stock bottom. (This baby cnc is a beast.)

I own the Genmitsu PROVerXL 4030 V2 (https://www.amazon.com/dp/B0C57YC46Q). I'm a bit disappointed there is no way to directly clamp this to the t-rails on this machine. No orientation makes either the external U tangs or the recessed slots in the body line up. If the body slots had been just a millimeter or two longer, screws could have aligned with the t-slots when the handle is pointing toward the front (this makes the corner with the guide be at x=0,y=max). Or if the shafts had been just a millimeter or two shorter (with optional spacers at the ends if needed for other CNC models), that would also have achieved alignment for the external tangs, although you would need a spacer to lift things up slightly to prevent the knob from rubbing on the MDF. On this modern CNC model, the only way to secure it to the table is you have to use external clamps on the U tangs. It might be possible to create an offset T-slot nut that has just enough extra offset to fit the current slots in the bodies, using the body slots you can get a screw to almost start into the T-slot nut but it's at a slight angle so does not work as is (somebody should make this useful accessory). Another potential improvement would be a few holes in the bottom of the end bodies, so you could insert a small pin (like 3 mm) that sticks out the bottom and could be aligned with the edge of the t-track, to make it's really easy to assure the vice is square with the t-slots. I assume I will have to get out a dial indicator to align this as is.

I took a "T8 8mm Lead Screw 10.24 inch / 260mm Length, Right and Left Hand Bi Direction Lead Screw with 2Pcs Brass Nuts " and this Vise, I got for the fiber laser and retrofitted it to be a self-centering vise. Self-centering vises are very expensive. So for about $100, I now have a self-centering vise for my Laser! It did take some drilling with some larger sized drill bits. It took about 2 hours to drill, mill out for the brass bushings and then tap for screws to hold the brass bushings. Worked out great and definitely makes workflow faster with Lightburn's hot key to center an object.

Good quality. Works as described. Fast Shipping.

These are good