Product Review

Descriptions
Those Cross Screwdriver Bits are made of S2 alloy steel which is a commonly used material in hardware with high hardness.
Magnetic bits can be firmly fixed on screwdrivers.
12 sizes a set at an inexpensive price can meet your requirements.

Specifications
Type of head: cross / phillips
Type of shank: 6.35mm / 1/4 in. hex
Those bits fit for electric screwdrivers, hand screwdrivers, electric drills, air drills and so forth.