I've used a large drift punch if you have one the correct size. Worst case you can make your own with a wooden dowel. I saw a guy do it once with a screwdriver and a small funnel, but I like a little more precision that that.
I used a socket that fit the splines and a fat screwdriver for the pilot bearing through the socket drive hole. That was on a 2001 porsche 911. Worked perfect. $500 clutch kit, didn't come with the tool...go figure...