Drill Master 115 Piece Cobalt Drill Bit Set
I've picked this set for #1 more for versatility than anything else. With this 115 piece set, you get 29 fractional sizes (1/16 to 1/2 inch by 64ths), 26 letter sizes (A to Z) and 60 numbered wire-gauge sizes (1 to 60). They are cobalt for drilling the hardest materials. The 135 degree tips are aggressive enough for fast cutting. They are also split-point, which helps keeps the bit from skating. Everything packaged together in a nice metal indexed storage case.