The 30 piece set is great value for money. If you average £10 a drill then it should be £300. But it's even cheaper!
In this photo [below] the two sets at the back are all finished and in production and retailing. The shot of the front set is in development. Its likely to be 10 drills [not 11 as printed on the mockup] for £59.99.
5 x 6mm
2 x 8mm
1 x 16mm
1 x 30mm
1 x 40mm
Toolkit: 1 x anti-slip plate : 1 x water cooling sponge : 1 x cleaning hook : 1 x case