1" only headset remover?
 

I have a "mountain bike tools" universal headset tool. Its been deburred and polished, but is still very tight when used with 1" headsets. I need to remove a Delrin Stronglight headset and there's no way mine will do it with out damage. So I need to buy another rocket. I was wondering if there are any available sized just for 1" cups? Thats realy what I need for 95% of the bikes i work on. Thanks.

I had success to remove the old headset from my CAAD4 project bike with a 1" steerer with this tool: CyclingDeal Bicycle Headset Cup Removal Remover Tool - NOT for BB Remover (amazon.com)

Go to the hardware store and find a washer who's OD approximates the ID of the head tube.

File 2 flats to make it as racetrack oval. Now you can slip it past the head cup where it can flop over to span the inner lips. That will allow you to drive the cup out using any solid punch.

OR you might use dental floss wrapped around the tines of your tool to hold them in the retracted condition. Slip it home, then use a paring knife to cut th we floss and allow to spring open.

If most of your repair work uses a 1” steerer, just buy the right tool. They are not expensive.
Park makes a nice one and I’ve used mine for many years without any issues.
Bet Chris at MBT makes one in that size too- he’s pretty awesome.

I have a cheap Nashbar house brand "rocket tool" that works fine on both 1" and 1-1/8" headsets and, with a little judicious bending, works on 44mm (a 1-1/8 x1-1/2" headset) cups. I wouldn't bend it in and out too often but for occasional use it's been very satisfactory.

You can make one out of an old, 1" (25.4mm) plain steel seat post. Cut some slots in the bottom, stop-drill the ends of the slots, flare the "fingers" slightly to catch on the cup flange, and that's it.

This is one I made several years ago for the charity shop where I volunteer:
https://cimg5.ibsrv.net/gimg/bikefor...9fa1321a4f.jpg

The one Sosmellyair linked was already in my amazon cart, so I went ahead and ordered it. Its not a "Park" but if I can get the Derlin cups out it will made a good start at earning its keep.