100 pc. Security Bits Set Security bits set contains many of the most common tamper proof type security bit sizes, including tri-wing bits, torx bits, spanner bits, and hex bits. Security bits set contains: 1 - wing nut driver. 1 - magnetic bit holder. 1 - socket bit holder. 1 - 1/4" sq. x 1/4" hex x 1" extension. 1 - 1/4" sq. x 1/4" hex x 2" extension. 3 - clutch bits (# 1, 2 & 3). 3 - torq bits (# 6, 8 & 10). 3 - spline bits (M-5, 6 & 8). 4 - tri-wing bits (# 1, 2, 3 & 4). 4 - square recess bits (# 0, 1, 2 & 3). 4 - spanner bits (# 4, 6, 8 & 10). 6 - metric hex tamper proof bits (2, 2.5, 3, 4, 5 & 6). 6 - SAE hex tamper proof bits (5/64, 3/32, 7/64, 1/8, 9/64 & 5/32). 8 - phillips bits (0, 1, 2{5} & 3). 8 - pozi drive bits (0, 1, 2{5} & 3). 9 - slotted bits (3, 4, 4.5, 5, 5.5, 6, 6.5, 7 & 8). 9 - metric hex bits (1.5, 2, 2.5, 3, 4, 5, 5.5, 6 & 8). 9 - torx bits (T-8, 10, 15, 20, 25, 27, 30, 35 & 40). 9 - torx tamper proof bits (T-8, 10, 15, 20, 25, 27, 30, 35 & 40). 10 - SAE hex bits (1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32 & 1/4). Set includes plastic storage / carry case.