BEARING WHEELS MANUFACTURING ADJ PRESS STOP MINI 3/8in RDThe Adjustable Press Stop Mini will make life easier for mechanics as it allows for quick and accurate positioning in places where space is tight at the press of a button Adjustable Press Stop slides along 3 8` ACME threaded press rod when the button is depressed and can be placed quickly to secure drifts, spacers, and cups when completing maintenance or installation of bike headsets, bottom brackets, and bearings Compatible with new and existing