For any of us who have the torque driver TW-SD-TRQ-1 - or similarly sized tool:

amazon lists a pack of 38 driver bits that contains bits for P1/P2/BRX terminal blocks with ~0.28Nm/2.5in-lb torque specs

search for item 'B09DXCPSF5' made by HOMPOWER

My 2.5 slotted bit was broken by a heavy-handed user.