Fit, drill, deburr lead counterweight to rudder R-912 counterbalance rib. Get to use #10 Drill and Gold Cleco! First time. Now I need a #10 Countersink and Dimpler?!?! Sent email to EAA 663 asking for suggestions and looking into order from Brown Tool 7/21/12 Borrowed #10 Dimple Die set and countersink from Ralph Cloud at EAA 663 Breakfast. Tools are also on order from brown aviation tool supply.