1818 17 July There is also a foreman, or assistant master armorer, to each principal branch of work, viz...one of the lock-filers; one of the stockers; and one of the finishers.
1858 W. Greener 213 They have..obtained a much better price than any other lock-filers out of London.
2005 C. R. Morris ii. 51 Lock-filers spent years as apprentices learning to painstakingly hand-file the forty or so separate lock pieces.