This Woodstock rub collar is built for serious woodworking and machining applications! Made from solid steel on CNC lathes, this thing is built to last through years of heavy use. The 2-7/8 inch outside diameter with 3/4 inch bore fits standard shafts perfectly. What really sets it apart are the maintenance-free bearings that deliver incredibly smooth, bump-free operation - no more jerky movements or inconsistent pressure. Manufactured and assembled right here in the USA, so you know the quality control is top-notch. Perfect for woodworking shops, metalworking applications, or any situation where you need reliable collar performance. The precision machining means consistent performance every time you use it. Whether you're using it on router tables, shapers, or other shop equipment, this collar provides the reliability professionals demand. The solid steel construction can handle the demands of daily shop use without wearing down. It's one of those shop essentials that you might not think about until you need it, but having quality collars like this makes all the difference in your work quality. The smooth operation reduces vibration and ensures cleaner cuts and more consistent results. If you're tired of cheap collars that don't perform consistently, this Woodstock collar is definitely worth the investment for serious woodworkers and machinists.