Made from S2 steel, much higher quality than normal CR-V steel, forged bit reduces stripping and increases bit life (3 times). Heavy-duty cold-forged steel for higher torque output.

Idea for using with impact screwdriver, which is great for turning rusted, frozen, or other stubborn screws.

8mm (5/16") shank Phillips head with 36mm whole length.

Size options:

• 6pc-pack Ph2 bits (for driving M3, M3.5, M4, M4.5, M5 screws)
• 6pc-pack Ph3 bits (for driving M6,M8 screws)
• 3pc Ph2+3pc Ph3