This is actually a precision-tooled magnetic bit designed for use along with the TAMIYA Ratcheting Screwdriver PRO in Item 74152. It conforms towards Tamiya L size, which corresponds to 3-5mm (JIS M3-M5) plus brain screws.
• (+) Screwdriver Bit L (brief) x1
• Bit size: PH2 x 55mm. Shorter shank assists when working with in tighter areas.
• Precision crafted Chromium-vanadium steel.
• appropriate Item 74152, and electric screwdrivers which could make use of 6.35mm hex shank bits.