This screwdriver was developed to fit the 2mm to 2.6mm Phillips screws used in Tamiya RC cars. It also fits JIS standard M2 to M2.6 screws. It is useful for tightening smaller screws, both in crafts and at home. The shaft is made of special alloy steel and is very strong. The pentagonal handle fits comfortably in the hand, making this a very easy-to-use screwdriver.