100 of the most popular bits. A bit for every job. Includes: (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 (No 1, 2, 3); (3) torque bits (No 6, 8, 10); (3) spline bits (M-5, 6, 8); (4) tri-wing bits (No 1, 2, 3, 4); (4) square recess bits (No 0, 1, 2, 3); (4) spanner bits (No 4, 6, 8, 10); (6) metric hex tamper proof bits (2, 2.5, 3, 4, 5 and 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) posi 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); (12) SAE hex bits (1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4); (1) plastic storage/carry case.