Reed?s combination drilling and tapping machines are easier to use, save operating time, and are a better value than any other machine. The CDTM Machines are tapping machines with the necessary components for conversion to drilling machines. The CDTM1000 is a TM1000 with components for converting to a DM1000. The CDTM2000 is a TM1000 with components for converting to a DM2000. It utilizes Reed DT series drill taps and Reed D series drill bits, hole saws and PVC shell cutters, as shown on p. 35 - 36. These items must be purchased separately.