These three tools from Leupold will enable you to mount almost all bases and rings with ease. The Ring Wrench is the ideal tool for turn in style rings, and the Torx Driver fits most of the Torx screws used on newer rings. The handy and compact Leupold Mounting Tool includes 2 Torx drivers, 5 hex head drivers and a slotted screwdriver. All the drivers fold into the compact tool body.
Big Book Catalog, Issue:67, Page:482
Sinclair, Issue:4A, Page:176
Sinclair, Issue:4A, Page:214