This is perfect with the original 48 piece Metrinch Set. Bits come in 1/4" drive sockets.

Contents: 

•    Screwdriver Bit (Star) 10mm
•    Screwdriver Bit (Star) 15mm
•    Screwdriver Bit (Star) 20mm
•    Screwdriver Bit (Star) 25mm
•    Screwdriver Bit (HEX) 5/32"
•    Screwdriver Bit (HEX) 3/16"
•    Screwdriver Bit (HEX) 7/32"
•    Screwdriver Bit (HEX) 1/4"
•    Screwdriver Bit (Flat) 3/16"
•    Screwdriver Bit (Flat) 1/4"
•    Screwdriver Bit (Flat) 9/32"
•    Screwdriver Bit (Phillips) 1mm
•    Screwdriver Bit (Phillips) 2mm
•    Screwdriver Bit (Phillips) 3mm