3 x Philips drivers: 00 x 50mm 0 x 50mm 1 x 50mm 4 x Flathead drivers: 1.6mm x 50mm 2.0mm x 50mm 2.4mm x 50mm 3.0mm x 50mm This high quality toolkit features 7 different drivers for electronic, electrical or general purpose precision use. For comfort & convenience, the screwdrivers feature larger than standard handles with a rotating grip for ease of use. Each screwdriver is clearly marked with the driver size.