Required for accurately drilling mounting holes in propeller. We recommend using with RCGF props.
Compatible with RCGF40twin, RCGF45, RCGF45-side, RCGF50, RCGF50B, RCGF50twin, RCGF55B, RCGF56, RCGF62, and RCGF65 engines
Note: Older versions of the RCGF45, RCGF45-side, and RCGF65 used 3-bolt prop hubs. This drill jig is not compatible with those engines.