3 x Philips drivers: 00 x 20mm 0 x 20mm 1 x 20mm 3 x Flathead drivers: 1.4mm x 20mm 1.8mm x 20mm 2.4mm x 20mm Professional Precision Screwdriver kit also available This toolkit features 6 different drivers for electronic, electrical or general purpose precision use. The screwdrivers feature handles with a rotating grip for ease of use. Each screwdriver is clearly marked with the driver size.