Starrett 117C Center Punch With... https://www.amazon.com/dp/B0006J4QOG?ref=ppx_pop_mob_ap_share
Watch "Castle Nut Staking - Fightmaster Method" on YouTube https://youtu.be/FUhxYO2EnX8
Best punch on the market for the job. If I knew how to use imgur I'd send you a pic of my last/first one I ever did. Looks like a pro did it. Hope this helps for future builds!
$8 and it's yours
Starrett 117C Center Punch With Round Shank, 4" Length, 1/8" Tapered Point Diameter https://www.amazon.com/dp/B0006J4QOG/ref=cm_sw_r_apan_glt_fabc_3AS6WVJ4V1N75G9N0CPY?psc=1
This is what you want to stake a castle nut. https://www.amazon.com/Starrett-117C-Center-Tapered-Diameter/dp/B0006J4QOG/ref=sr\_1\_1?keywords=starrett+117c&qid=1638996212&sr=8-1
My dude make this easy.