Park Tool CRS-15 Crown Race Setter For 1.5 Steer
The CRS-15 installs the bearing race on the 1.5 Inch forks. The bearing surface is spared a direct hit by using an aluminum inserts. Using a hammer, tap firmly on the end cap of the tube and seat the race into its proper place safely and accurately.
I finally purchased one of these to install races on my taper forks. It comes with a blue adapter which looks like it will work on 1 1/8 too