Threading TopThread™ Boring Bars Necked steel shank with through coolant. See page F8 for inserts. Right Hand Tool A-NNT-1 seat gage clamp hex/ order number catalogue number size D D min D2 L1 L2 F A CS insert clamp screw Torx Plus right hand 3641647 A12MNNTOR1 1 12 11,5 8,7 150 31 7 4,0 1/16-27 NPT N.1L CM109 MS1034 1.5 mm 3641648 A10KNNTOR1 1 10 11,5 10,0 125 — 7 3,2 — NG1L CM109 MS1034 1.5 mm NOTE: F dimension measured over sharp point of insert. F32 widia.com