The set contains ;

6 X Extreme masonry bits. (4, 5, 5.5, 6, 7 and 8mm).
13 X HSS Extreme bits. (1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.5, 5, 5.5,
6, 6.5 and 7mm).
3 X Flat bits. (12, 18 and 25mm).
29 X 25mm PZ2 bits.
29 X 25mm PH2 bits.
1 X 50mm PZ2 bit.
1 X 50mm PH2 bit.
1 X 50mm SL2 bit.
1 X Double ended bit and adaptor.
4 X various insert bit chucks.