* For use in Numertap 770 Attachments when synchronous tapping. * Provide maximum concentricity with positive driving force. 2007-01-17T12:17:22+00:00 false false 90 0 true false For use in Numertap 770 Attachments when synchronous tapping. Provide maximum concentricity with positive driving force. PGT and ER Tapping Collets, Numertap^® 770, Tapping, Products, Numertap 770 ER Tapping Collet ERT32-056 shown here., , For ER11 collets see Toolholding. For #2 - #6 taps use ERXX-0157 square drive not required. PGT and ER Tapping Collets 35 4 false pgt_and_er_tapping_collets 2009-01-08T15:22:35+00:00 true