Holder Type: External threading tool holder (SEL = Left-hand)
Shank Size: 25 25 mm (heavy-duty, large holder)
Insert Compatibility: 16ER threading inserts (metric / UN threads)
Clamping System: Screw clamp strong and secure insert holding
Application: External threading on CNC & conventional lathes
Rigidity: Very high suitable for heavy cuts & deep threading
Cutting Direction: Left-hand cutting (for reverse direction threads).








