Wiha 75995 ESD Safe System 4 Precision Interchangeable MicroBit Set with Slotted/Phillips/TORX/5-Point Bits, 26 Piece Small, rugged, and compact Hardened bits made of chrome-v-moly super tool steel Includes compact fold-out storage box Spring clip bit holding 4-Inch bit extension Handle made of static dissipative ESD safe material