
Required Information:
External/internal operation. L R L R L R
Feed direction. hand of thread hand of toolholder hand of insert
Feed direction toward the chuck RECOMMENDED L R
L R R L
external left-hand thread external right-hand thread internal left-hand thread internal right-hand thread
Feed direction away from the chuck L
R R L L
external right-hand thread external left-hand thread internal right-hand thread internal left-hand thread
The insert size must match the gage insert size of your toolholder selection: Select the appropriate holder for the insert size and hand:
Required Information:
catalogue gage number insert
NSR-163D N.3R NOTE: Optimise your threading operation by using the proper infeed method
and the recommended infeed values. NSR-164D N.4R See the Technical section on pages F79–F101 of this catalogue. NOTE: TopThread toolholders and boring bars are listed with a gage insert to For internal threading, minimum bore varies depending on thread type.
indicate the size and hand required. They are compatible with See page F92 for details. both grooving and threading inserts of the same size.