This fits all the aero 6.5/7.5 series and the center taper that fits either the 19-8702 or 19-6101 collet

The 19-8702 collet taper extends the entire length of this prop driver and the stepped end protrudes past the front of this driver so the prop must be bored partially to fit. This prop driver is identical to 20-4801 except the later has a steped bore and must use the 19-6101 collet.