The Chapman 1/4" racheting wrench that RCBS gave me 10 years ago or so broke so I went shopping for a new one. RCBS no longer supplies the wrench.
Ended up buying a Harbor Freight and bought an 8 piece right angle screwdriver set for $3.99 with a lifetime warranty. The item number is 92630.
They had another kit there also for a little more money but the rachet was not as smooth in operation.
The racheting mechanism on the one I bought is smooth and switchs direction with a lever. Did not have to modify it in any way so it will still function as a screwdriver and the warranty is intact.
This will work on the older RCBS luber/sizer and the Lyman brand.