Title: These are a great help to workshop mobility!
Review: I purchased two of these swivel casters along with two of the fixed base casters (model #H0667) and mounted them to a 4 drawer supply cabinet in my shop. I now have a mobile cabinet/workstation that will lock in place wherever I want it to. The double locking mechanism on the swivel casters works perfectly!The only complaint I have is that I mistakenly assumed that these 3" swivel casters could be paired with the same manufacturer's 3" fixed base casters and everything would be level. I was wrong. The first time I mounted this combination of casters my cart was very unlevel! When I turned my cabinet upside down again I realized that the fixed base casters need an extra 3/8" or so of shimming to be level with the swivel base casters.All in all, I highly recommend these as quality products that will allow you to make immobile things mobile, which is always a good thing!
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