universal precision mechanic micro-bit-set with most-popularest bits Including bit-screw driver with adapter 4mm and 38 pcs. high precision 4mm micro-bits. Made by S2 tool-steel for long tool life. the set consists of: - 3 hexagonal-bits with centre hole (2,0 2,5 3,0) - 7 hexagonal-bits (0,7 0,9 1,3 1,5 2,0 2,5 3,0) - 7 Slotted pan head screw-Bits (0,8 1,2 1,5 1,8 2,0 2,5 3,0) - 3 Pozidrive-Bits (PZ0 PZ00 PZ000) - 3 Philips-Bits (PH0 PH00 PH000) - 6 Torx Bits with centre hole (T-6 T-7 T-8 T-9 T-10 T-15) - 10 Torx Bits (T-3 T-4 T-5 T-6 T-7 T-8 T-9 T-10 T-15) - ergonomic formed handhold with bit holder 4mm delivery in compact plastic-box