® CMT Vertical Milling Full Profile - UN Inserts for internal threadMulti Flute CuttingDDiameter InsertTypeOrdering Code PitchTPI Nominalsize UNC UNF UNEF Numberof TeethD No. ofFlutesHolderCode* H3, 3.1, 4, S17 S150 F 10 UN 10 3/4 1 15.0 6 5, 18, 19, 20 S160 H 24 UN 24 11/16 4 16.0 8 3/4, 13/16, S169 H 20 UN 20 7/8, 4 16.9 8 15/16, 1 S164 F 16 UN 16 7/8, 15/16, 1 3/4 3 16.4 6 H5.1, 5.2, S20 S191 F 14 UN 14S186 F 12 UN127/8, 15/16 7/8 2 19.1 6 6, 7, 8, 9,21, 22, 231218.66 S178 F 9 UN 9 7/8 1 17.8 6 S200 F 8 UN 8 1 1/8 1 1 20.0 6 S200 F 7 UN 7 1 1/8, 1 1/4 1 20.0 6 S200 E 6 UN 6 1 7/16 1 3/8, 1 1/2 1 20.0 5 S200 D 5 UN 5 1 3/4 1 20.0 4 S350 F 8 UN 8 1 5/8, 1 3/4S35S350 F4 UN42 1/2, 2 3/4,3 2 35.0 6 H12, 13,135.0614, 26 * For complete toolholder description see pages B07-22 and 23 B07-11