SPACEKEEPER Workbench Casters kit 920 Lbs Retractable Casters Heavy Duty Bench Caster Wheels Side Mounted Retractable Workbench Wheels Designed for Workbenches Machinery & Tables, 4 Pack

When I got it, I ran a test by mounting it on a 2x4, it worked fine. Three weeks later after I built the 2'x4' woodbench, I installed all four legs. It works very well, solid and easy to operate it. But, two comments about this product:- The installation manual is a joke, useless in one piece of paper with simple drawing. Look their product pictures, that's more detail of how to do installation.-2nd, the template is1/8" off, too short, don't follow it. Use the real plate will get the job done right.

I have a large cement-floored barn. I had some extra kitchen/dining room tables that I wanted to use as worktables instead of letting them just sit disassembled gathering dust. But I wanted to keep the floorspace of the barn easily re-configurable since I do oil changes and other vehicle maintenance in the building and need to be able to quickly clear floor space.For the first table, I used some old, but high-quality metal-framed-with-bearing office chair casters. They work and they were free, so I am just going to keep using them. But for the second table, I ordered these.The better relative usability and suitability is clearly evident. The first table with the re-purposed casters rolls but is hesitant to move and I can’t let it down on the legs.These roll much easier, and I can let the table down on the legs for extra stability if needed.Installation was simple enough. As others have mentioned, there may be a slight learning curve with your first caster as the instructions (or rather lack thereof) are unclear. But after learning and seeing the process, it is easy enough.The included fasteners are of decent quality. I pre-drilled all the holes and none of the screws stripped out when installed with an impact driver. But I’ve had enough experience with these types of products to see that if you did not pre-drill, these would almost certainly strip out.The included “disposable wrenches” are actually of quite high quality. I had an entire workbench full of wrenches and sockets sitting 6 feet away during installation and I just kept using the included “disposable” tools. Sometimes tools like that are terrible but in this case they are excellent for this specific application.After installation, I tested both tables rolling up and onto some thin carpet. The re-purposed casters struggled. These did so easily.

Once installed, these SPACEKEEPER Workbench Casters work as expected and make it very easy to move around a shop table that I just finished out of scrap wood and tempered hardboard. Like so many “some assembly required” projects, it takes you forever to finish the first [only] set of casters. If you were to do an additional ten, it would take you the same amount of time as the first project, since you know the tricks to use, and the mistakes to avoid. Please note these are to be mounted to the sides of your bench legs and not underneath the bottoms of the legs, so plan your design accordingly. In the “down” (rolling around) position, you add only ¾” to your table height (see photos).So here are my complaints and recommendations if you buy this caster set:1. The instructions are pretty much worthless. They basically say “put together and mount on table legs.” No helpful step by step details and the included drawings (on one little square of paper) don’t match the items in the kit. Mine was labeled “upgraded version” so maybe the drawings referred to the parts in the non-upgraded version. It was frustrating trying to follow the limited (three!) steps because you have to figure out the orientation of parts that don’t look like the ones in the drawing.2. The kit is supposed to include 4 wrenches but instead there are two stamped metal pieces with various cutouts shaped like bolt heads and nuts. I tried using them and quickly switched to real tools – much easier.3. The instructions indicate you should assemble the caster units entirely and then mount them with the provided screws. I did that, only to find that to mount the screws in the bottom part of the bracket, you have to take the caster unit apart again to gain access to the holes (see photo). Lesson learned: attach the step-down pedal (with the red tip) to the bracket and also assemble the caster stem in the lower part of the unit (“wheel mounting plate”), but don’t attach that to the black bracket yet. Instead, locate, pre-drill pilot holes, and screw the bracket to the leg first, then attach the caster stem and lower part of the unit to the bracket. Adjust tension on the bolt and nut that hold the step-down pedal until it takes a slight push to make it go down, but not so tight it won’t easily lift up again.4. The template would be a good thing to use to help accurately place the bracket on your bench leg if only it was the right dimension – which it’s not. It is crucial to mount these things exactly right so your table sits flat/stable when the caster wheels are “up” and rolls freely when the caster wheels are down. The problem is that the template is 1/16” too short and 3/8” too narrow to match the footprint of the black brackets. So beware. I trimmed my template correctly with a razor knife to the right size. I also elected to mount the units inside the legs so as to avoid a stumbling hazard. You may want to do likewise (see photo).5. The screws included are complete crap and should be discarded immediately. Don’t do as I did and have three of them cam out when pressure was applied (see photo). With a fourth one, the screw head snapped off completely, leaving about 2/3 of the screw shaft irretrievably buried in the wood. When I switched to my own supply of wafer head screws (see photo), I was able to mount the brackets without issue.Once installation was completed, I was able to dance the workbench around the shop with ease. Stepping down and toe-ing up the red-tipped pedals is a snap. All-in-all, I am very satisfied and for Chinese-made parts, these are not too bad. I have another table on which I used 360-degree casters with brakes, mounted underneath the bottoms of the legs, and they are a real pain to operate. These SPACEKEEPER Workbench Casters I would recommend if you are reasonably handy.