Rolo1793

Thank you all for the advice! I tried the steering wheel puller Idea and it was a no go I wrenched on it until I stripped the threads off the bolts that came in the puller kit. So I took a closer look at where the key would go and it almost looks welded on I will post pictures tomorrow

So my mom-in-law has a 1997 subaru legacy I am the family "mechanic" (normally basic stuff) Anyway the harmonic balancer was wobbling and threw the power steering belt so I tried to take off both belts and line the pulley back on the pin when it wouldn't lock in place I removed it. There was as chunk of metal broke of where the woodruff key would be. So I took off the timing belt to remove the crankshaft sprocket and I can't get it to budge by hand I believe half of the key snapped off in side the sprocket any ideas on how to remove the sprocket? Without causing more damage I was told maybe drill it out but be super careful is that my only option? Thank you so much in advance!