Review on 4-Pack 1.5 Inch Swivel Stem Casters - 330 Lbs Capacity, Non-Marking Polyurethane Wheels & 3/8"- 16 X 1" Threaded Stems With Nuts For Furniture Carts Trolleys. by James Fisher

The area I have available for some of my shop tools is limited, so I have to be able to move the tools easily in order to use them. I have put them on a table saw, a planer, a grinder , and a band saw. So far I've been quite pleased with the casters' performance. I've used them for a short period, so it remains to be seen how they hold up over time.The key deciding factor in purchasing these is the fact that the lock keeps the wheel from turning while also keeping the caster from rotating -- something critical to keeping power tools stable while in use. A second major factor was the cost relative to similar products elsewhere.Installing them into metal stands with existing holes in the base of the legs was quite easy, needing only to insert the stem of the caster through the hole and then secure with a lock washer and nut. Inserting the caster into the bottom of a wooden leg was more of a challenge (and the only reason for giving 4 stars rather than 5). For inserting into the bottom of wooden legs, each caster comes with a metal insert that has external threads for the wood and internal threads to receive the caster. It was challenging to get the inserts into wood legs that measured about 2" x 2.5". (I have answered a question about that elsewhere here to explain how I did it.)