Attributes . Compact Magnetic Bit Holder, 1/4 in Magnetic Nut Driver, 5/16 in Magnetic Bit Holder, 1/4 in Socket Adapter, 1 in PH1, 1 in PH2, 1 in PH3, 1 in PR2, 1 in SQ1, 1 in SQ2, 1 in SQ3, 1 in T10, 1 in T15, 1 in T20, 1 in T25, 1 in T27, 1 in T30, 1 in T40, 1 in S . Names