TopGroove ™
Boring Bars
Necked steel shank
with through coolant.
Right-hand toolholder shown.
order number
catalogue number
D
D min D2
L1
L2
F
A
CS gage
insert
clamp
clamp
screw
hex/
Torx
Plus
A-NNT-1
right hand
3641648 A10KNNTOR1 10 11,5 10,0 125 — 7 3,2 — NG1L CM109 MS1034 1.5 mm
3641647 A12MNNTOR1 12 11,5 8,7 150 31,30 7 4,0 1/16-27 NPT N.1L CM109 MS1034 1.5 mm
widia.com
E79
NOTE: Minimum bore capability varies with depth of groove. See pages E86–E87 for details.
F dimension measured over sharp point of insert.