Got bored at work, so I made a spring loaded chuck key for the shop's lathe : r/Machinists
Removable location pin with pull bar inch
Pratt Burnerd Square chuck keys By Pratt - R.D. Barrett
Bison 11mm Square Lathe Chuck Key
Lathe Chuck, Chuck Lathe Parts 3inch with Lathe Chuck Replacement for Chuck Lathe Parts for Home Use for Factory : Amazon.co.uk: Business, Industry & Science