A very sophisticated 4 mm and 6 mm bit set with screwdrivers from CR-V material, representing higher material strength, thus ensuring reduced wear. The set includes a wide variety of bits, which can be used for very fine delicate work as well as work with standard -sized screws and bolts. Large screwdriver with an ergonomic handle and ratchet also boasts storage space for spare bits for the situation where for assembling a cabinet one needs only a few given bits and it is not necessary to carry the entire set. On the other hand, the small screwdriver for 4 mm bits is used for very fine operations with small screws also with the help of a ratchet. The set also includes socket heads from 5 mm to 13 mm for the easier tightening of a nut to a bolt.