> ST: Use the drill to embiggen the chalice hole, then stick the dirk through.
You're lacking the required DRILL BIT to perform that action. Even if you did, any hole big enough to push the dirk through would be big enough to push the wieners through.
You put the chalice in your inventory for now, along with the dynamite.
> Open the western door
It's locked. Good thing too, something about this door gives you the creeps...
You try the southern door too, for the heck of it.
You have entered the belfry.