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Boring Bars
Steel shank with
through coolant.
See page F8
for inserts.
D min
Right Hand Tool
catalogue number seat
size D D min L1 F CS gage
insert clamp clamp
screw clamp
screw hex/
Torx Plus
3641643 A16MNNTOR2 2 16 22,0 150 11 1/8-27 NPT N.2L CM75 MS1200 — 2.5 mm
3641645 A20QNNTOR2 2 20 26,0 180 13 1/8-27 NPT N.2L CM75 MS1200 — 2.5 mm
3641651 A25RNNTOR2 2 25 34,0 200 17 1/4-18 NPT N.2L CM75 MS1200 — 2.5 mm
3641622 A25RNNTOR3 3 25 34,0 200 17 1/8 - 27 NPT N.3L CM73LP — MS2111 25 IP
3641646 A32SNNTOR3 3 32 44,0 250 22 1/4-18 NPT N.3L CM73LP — MS2111 25 IP
order number
right hand
3641653 A40TNNTOR3 3 40 54,0 300 27 1/4-18 NPT N.3L CM73LP — MS2111 25 IP
3641654 A40TNNTOR4 4 40 54,0 300 27 1/4-18 NPT N.4L CM73LP — MS2111 25 IP
3641661 A50UNNTOR4 4 50 70,0 350 35 1/4-18 NPT N.4L CM73LP — MS2111 25 IP
3641644 A12MNNTOR2 2 12 18,5 150 11 1/16-27 NPT NG2L CM147 MS1200 — 2.5 mm
3641649 A16MNNTOL2 2 16 22,0 150 11 1/8-27 NPT N.2R CM74 MS1200 — 2.5 mm
„ 
A-NNT
left hand
3641652 A20QNNTOL2 2 20 26,0 180 13 1/8-27 NPT N.2R CM74 MS1200 — 2.5 mm
3641657 A25RNNTOL2 2 25 34,0 200 17 1/4-18 NPT N.2R CM74 MS1200 — 2.5 mm
3641650 A25RNNTOL3 3 25 34,0 200 17 1/4-18 NPT N.3R CM72LP — MS2111 25 IP
3641656 A32SNNTOL3 3 32 44,0 250 22 1/4-18 NPT N.3R CM72LP — MS2111 25 IP
3641659 A40TNNTOL3 3 40 54,0 300 27 1/4-18 NPT N.3R CM72LP — MS2111 25 IP
3641663 A40TNNTOL4 4 40 54,0 300 27 1/4-18 NPT N.4R CM72LP — MS2111 25 IP
3641690 A50UNNTOL4 4 50 70,0 350 35 1/4-18 NPT N.4R CM72LP — MS2111 25 IP
3641655 A12MNNTOL2 2 12 18,5 150 11 1/16-27 NPT NG2R CM146 MS1200 — 2.5 mm
widia.com
F31
NOTE: F dimension measured over sharp point of insert.