Selection of security bits for Torx, spanner and hex fasteners in the most popular sizes. (4) Spanner: 4, 6, 8, 10 (4) Tri Wing: 1, 2, 3, 4. (13) TORX: T5, T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40, T45.
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