Power units fit the DM1100, DM2100, TM1100, CDTM1100 and CDTM2100 machines including all variations. Economical 601PDTA P power tapping/drilling machine is a portable electric machine which is lightweight and a good value. Its plated metal bar reinforces the plastic handle to protect the housing from excess torque. 601PDTAP can be used on any tap machine with a 13/16” square end boring bar. The 700PDTM PDA (electric) or 700APDTM PDA (pneumatic) power tapping/drilling machines are heavy-duty workhorses designed for constant, everyday use. Units consist of the selected power drive and a TMPDA adapter which fits a 13/16” square end boring bar that is common on popular drilling and tapping machines. The operator manually turns the star feed on the tapping or drilling machine while the power drive adapter turns the boring bar.