You need access to a solidly mounted bench vise and drill bits. I would recommend having new replacement bearing retainers on hand. That way you can be positive what the thread direction is.
If you are replacing the spokes or rim, I recommend removing the retainers while the wheel is together.
Make sure you've eradicated the punch marks by lightly drilling into them, just enough to see fresh shiny aluminum.
Make sure you've applied WD40 or a penetrant/lubricant into the threads.
Measure the distance between the slots or opposite pin holes.
Find 2 drill bits that fit snugly into the slots or holes.
Place the drill bits shank end up in the vise, protruding just enough, and placed the proper distance apart.
Put the wheel or sprocket carrier upside down so the drill ends go into the slot or holes. If you are removing the sprocket carrier bearing, you can put the entire wheel with dampers over it.
Determine which way you need to rotate the wheel, and turn it, while keeping downward pressure. By using the entire wheel, you have tremendous leverage and control.