Size: for T5,, T7, T8, for T9, for T10, for T15, for T20, for T25, T27, for T30, T40. 1 50 T40 for Torx Screwdriver Bit. Those bits, that can be firmly fixed on screwdrivers,fit for electric screwdrivers, hand screwdrivers, electric drills,air drills and so forth.
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