5/8" PT6 Propeller Wrench 35-660040 Approximately 1991 they switched to

Approximately 1991 they switched to a nut that is external wrenching and has twelve points

These probes are difficult to access on a Continental engine

TS 1176-11

The part number equivalents for this tool includes: TS1584N

These Lycoming Torque 'Hold-Down' plates (Wide Deck) are offered as a direct replacement for Lycoming PN# ST-222 / Wide Deck (Wide Deck)

5/8" PT6 Propeller Wrench 35-660040 Approximately 1991 they switched toThe part number equivalents for this tool are: AST 2877 (TE5), 10113. This wrench is a torque extender for use on Beechcraft King Air aircraft that have either the Hartzell or Hamilton Standard Propellers.