the basic tools to have on hand for a Pinnacle Stair Lift installation. If you have any questions, concerns or comments, please contact our Technical Service Department at 800-378-6648 or [email protected]. REQUIRED TOOLS • Allen Wrench: • 5/64" • 5/32" • 3/16" • 5/16" • Cordless Drill • Nut Driver: • 3/8" • 5/16"