comments:
Yeah that's rare. You could maybe use a 5 point torx security bit. Specifically a TS50.Depending on how much torque you're having to apply to get it off, something like this could be the thing you need. You can interchange torx + pents in some cases. Unless you're having to apply a lot of pressure. What part of the trans are you working on? These are only really used on secure parts like MAF, but not that big. https://www.amazon.com/9-Piece-Tamper-Resistant-Chrome-Vanadium/dp/B0DJ4DPCJK?crid=1T2ECPESG2QZH&dib=eyJ2IjoiMSJ9.AgUmS8WH1ATi-L34VaSqJWMpk9uaflXlj3oSWomJwqWeROnioOwilGHzEaOQvyZfA_byyZJZjJL3bZuC8Vg_CrnKSwWPWUNNkSwz1tL2AL2DG253gUL99wRRWgmtJGDOCZeeWlvoTwf3zwj2v5nE-5wQtC12YeeNtf_wkE1MpXcRRwQFZVJZbZl2jLyB4GfMBXOLrQ8f7pVdQPWe1gPos9pkdppA9PEkG82kbs7OIBM.fbpDGfrS-mJz89eis-3CJ6moKLHF6wMP20MDR2DFsuo&dib_tag=se&keywords=TS50+impact&qid=1781737260&sprefix=ts50+i%2Caps%2C244&sr=8-1 I'm not based in the US, hopefully that listing is available to you. Edit: fixed the link