Threading Insert FANAR 22 IR 4.0 ISO BMA for Thread Turning, internal 22 mm, pitch 4.0 mm

FANAR 22 IR 4.0 ISO BMA threading insert is a carbide replaceable insert engineered for internal thread turning on lathes. Designed for use with a 22 mm internal diameter and a 4.0 mm thread pitch, the insert follows ISO thread geometry and BMA orientation to provide consistent ISO metric thread profiles. The insert is intended for installation in compatible internal threading holders and enables quick changeover during turning operations while maintaining repeatable profile control.

Advantages

The FANAR carbide insert offers stability and dimensional repeatability when cutting internal ISO metric threads. Its replaceable design reduces downtime by allowing fast index or insert changes without regrinding, while the ISO geometry ensures compatibility with standard thread forms. The insert material and geometry are selected to balance wear resistance and cutting precision for a range of common lathe applications.

Suitable for

• Internal thread turning on conventional and CNC lathes
• Cutting ISO metric threads with 4.0 mm pitch
• Applications requiring repeatable thread profile control at 22 mm bore

Key specifications

• Insert type: replaceable carbide internal threading insert
• Intended bore diameter: 22 mm internal
• Thread pitch: 4.0 mm
• Thread standard: ISO metric geometry
• Orientation: BMA (orientation for holder seating and cutting direction)
• Application area: internal (ID) threading

How to use

Install the FANAR 22 IR 4.0 ISO BMA insert into a compatible internal threading holder following the holder manufacturer’s clamping and seating instructions. Set up the lathe for internal threading by selecting the correct spindle speed, feed rate and depth of cut for the workpiece material, and program or engage the lathe’s threading feed corresponding to a 4.0 mm pitch. Perform test cuts and measure the thread profile to verify correct depth and pitch before final machining. Replace or index the insert when wear affects thread form accuracy.

Usage recommendations

For best results, use cutting parameters appropriate to the workpiece material and rigidity of the setup; employ suitable cutting fluid for material and thread finish; verify holder compatibility with the BMA orientation; and perform trial cuts to confirm thread dimensions and surface quality before production runs.