Got the bits indulged after my cordless screwdriver (Bosch GSR 18V 4.0 Ah) has broken all favorable variations of bits. And I must say, these are worth 5 stars. Rather you destroy the screw head, as the bit. Although the gold-colored alloy flakes with regular use at the top from something, but this I feel not as disturbing. The included bit holder also serves its purpose and in the box, the bits are very good and canceled to save space and fit as in the L-Boxx of the screwdriver !! Can highly recommend this set !!