Descriptions<br> Those Hex Head Screwdriver Bits are made of S2 alloy steel which is a commonly used material in hardware with high hardness.<br> Magnetic bits are firmly fixed on screwdrivers.<br> 8 sizes a set at an inexpensive price can meet your requirements.    Specifications   Brand: JAPAN SEALS  Materials: S2 alloy steel  Type of head: hex  Type of joint: 6.35mm \/ 1\/4 inch hex  Net weight: (approx.) 87g   Dimensions:<br>                  Size            Dia. of head (mm)         Lgth. (mm)               H1.5         1.5 \/ 0.06&amp;quot;         50 \/ 2&amp;quot;               H2         2 \/ 0.08&amp;quot;         50 \/ 2&amp;quot;               H2.5         2.5 \/ 0.1&amp;quot;         50 \/ 2&amp;quot;               H3         3 \/ 0.12&amp;quot;         50 \/ 2&amp;quot;               H4         4 \/ 0.16&amp;quot;         50 \/ 2&amp;quot;               H5         5 \/ 0.2&amp;quot;         50 \/ 2&amp;quot;               H6         6 \/ 0.24&amp;quot;         50 \/ 2&amp;quot;               H8         8 \/ 0.3&amp;quot;         50 \/ 2&amp;quot;      <br>  Features<br> Those bits fit for electric screwdrivers， hand screwdrivers， electric drills， air drills and so forth.<br>  NotesPlease allow a bit manual measuring errors.<br>Package included1 x H1.5 Magnetic Hex Screwdriver Bit1 x H2  Magnetic Hex Screwdriver Bit1 x H2.5 Magnetic Hex Screwdriver Bit1 x H3  Magnetic Hex Screwdriver Bit1 x H4  Magnetic Hex Screwdriver Bit1 x H5  Magnetic Hex Screwdriver Bit1 x H6  Magnetic Hex Screwdriver Bit1 x H8  Magnetic Hex Screwdriver Bit