Brownells, super set and thin set With these tips you will be able to take on most any firearm. A bit pricey but cover all the bases. They also sell individual tips. I think there is a thread on here from a while back that describes which tip for which screw so you could just buy the Parker specific tips. Someone may recall the particular thread but it escapes me at the moment.
Cheers,
Jack
http://www.brownells.com/.aspx/cid=0...magna_tip_sets