restored a parker 51 today, only thing left to do is to buff out the scratches, i'm thinking of using the polishing wheel on my dremel

but i'm not too sure if its going to make it worst

I'd suggest 2000-grit wet/dry sandpaper, used wet. Polish with Simichrome on a 100% cotton flannel rag -- NO SYNTHETICS!

Please don't do it. Why must it be polish? You are going to use it and there will be scrached anyway. Just leave it alone. If you have too give a light polish with cloth.

sort of like the final touches of the pen

when it came to me it was in very very bad condition, just want to restore it to its former glory

Congratulations on repairing your 51! Is it a Vac-fill or is it an aerometric? I agree with your decision to polish up your pen. I would take it slow and hand polish it. The lucite is pretty durable, just be careful around the tip of the nib as the flannel cloth might get caught on it.
Good luck!
Regards,
Alriel

Not true! The scratches can be removed, and the <i>causes</i> of the scratches can be addressed - whether it's the clutch that needs to be smoothed, or the cap edge. Either can be corrected, preventing the scratches from returning.

Polishing will work, and if done carefully will restore the pen as you wish to it's former glory...

Have a look around, particularly in the Reference information pinned thread for polishing guidance. I suggest you carefully consider whether to use the Dremel. I note that you intend to use a polishing wheel - a good idea but under no circumstances consider the hard felt wheels as they will damage the plastic very quickly. If the polishing wheel you intend to use is soft flannel of loose construction, the chance of damage is significantly reduced, but my personal recommendation for someone starting out with polishing plastics is similar to Richard's - use hand polishing methods. It's so much safer.

Regards.

Gerry