Feature
Durable strong hardened steel
Heat treated for maximum strength
Gold colored for identification and corrosion resistance
Precision engineered teeth fit tightly
These bits allow you to open，repair，and to clean different types of video game cartridges and systems.

*3.8mm bit opens NES，SNES，N64，GameBoy and GameBoy Color cartridges.
*4.5mm bit opens NES，SNES，N64 and GameCube systems.

Specifications
Bit length: 49 mm
Diameter:3.8 mm/4.5 mm
Color:Sliver
Material:hardened steel

Package include
1 x 3.8 mm security bit
1 x 4.5 mm security bit