10PCS PH2-SQ2 Double End Screwdriver Bits, 2.56″ Magnetic S2 Steel with M-Box
10Pcs PH2-SQ2 Impact Double End Screwdriver Bit Set, 2.56 in. 20pcs Magnetic Mixed Impact Double-ended Power Bits Set. And both ends of the power bit lock securely in impact drivers or quick-change chucks.