3.8 mm 4.5 mm Reversible Gamebit Security Screwdriver Bit Set Professional Torque Game Screwdriver Bits for Switch Lite, JoyCON, NES, SNES, GBA, PS4 N64

I used this to open a GameCube. The screws are a long way down this just reaches them. Only negative is it could have done with being slightly longer so it’s not sitting on the GameCube case when opening.

Nice ball detent on the bit, just the right amount to hold the bit without being difficult to remove/flip around, will have to see if the spring holds up over time. Bit material hardness is fine for game-bit screws since they are mostly made of cheese-ium, and self-tapping into plastic that takes almost no torque to unscrew.For now, my only complaint (3d into ownership, used on 16 screws) is the extremely low magnetic force (why four stars rating, not five), but that can be fixed if you have a magnet on hand, or a screwdriver de/magnetiser.

Product as described

Bought this to strip down and clean a Nintendo 64. It's really well built, and the fit of the heads is very accurate. Very useful little tool.

Perfect for a SNES. Enabled me to take it apart and repair some damage to the case.

Neede to open game boy cassette but had security screws. This did the job

Rescued a couple of dead SNES carts with this, really handy and can't see it ever needing to be replaced. Get one!

Just bought one to open some old Game Boy cartridges to give them a good clean. It fits well and screws/unscrews flawlessly. A must have if you need to swap the battery of battery-backed cartridges.