Up for 'buy it now' is a 5 Piece General MRCS Style Drain Cleaner Bit Set for Slotted End Style Cables sizes 3/8" 1/2" and 5/8".  

1) Serrated Edge Bits 2"
2) Retrieval/Boring Bit
3) U Cutter
4) Starter Bit
5) Cable Screw