Threading Insert FANAR 16 IR 3.0 ISO BMA — 16IR3.0ISOBMA, internal threading insert 16 mm

Carbide threading insert FANAR 16 IR 3.0 ISO BMA is an internal threading insert designed for ISO metric internal threads with a 16 mm designation and 3.0 mm pitch. Intended for use in turning centers and CNC lathes, this insert produces accurate thread profiles in steels and common alloys when paired with the correct toolholder. Its carbide composition supports dimensional stability and wear resistance required for repetitive production and repair operations.

Advantages

The insert delivers consistent thread geometry and repeatability across multiple workpieces thanks to its precision-ground profile. Carbide construction offers a balance of hardness and toughness for extended cutting life in typical turning applications. The standardized ISO profile simplifies tool setup and interchangeability with compatible holders and machines, reducing downtime during tool changes.

Suitable for

• Internal threading of ISO metric threads with 3.0 mm pitch
• Turning centers and CNC lathe production environments
• Repair and maintenance of threaded holes in steel and common alloys
• Batch production where repeatable thread quality is required

Key specifications

• Insert type: internal threading insert
• Thread standard: ISO metric profile
• Thread designation: 16 mm
• Thread pitch: 3.0 mm
• Material: carbide
• Intended mounting: compatible internal threading toolholders for lathes

How to use

Mount the insert in a compatible internal threading toolholder designed for the insert geometry and secure it according to the holder manufacturer's instructions. Set up the lathe for internal threading, select appropriate cutting parameters (spindle speed, feed per revolution corresponding to 3.0 mm pitch, and depth of cut) and perform trial passes to verify fit and form. Use coolant or cutting fluid as recommended for the workpiece material to control temperature and chip evacuation. Inspect thread profile and adjust feed or depth to achieve required tolerance.

Usage recommendations

Use the insert with holders providing stable support and minimal overhang to maintain thread accuracy. For steels and tougher alloys, reduce cutting speed and increase coolant flow; for softer alloys, moderate speeds and lighter feeds improve finish. Regularly inspect insert edges for wear and replace before excessive deterioration to preserve thread quality and avoid workpiece damage.