Tool-flo 613400RAC50C Carbide Threading Insert 10-44 Tpi

Product Description

The TOOL-FLO 613400RAC50C is a carbide threading insert designed for precision thread-cutting operations on both internal and external workpieces. Part of the Flo-Lock series, this insert features a 60-degree V thread form and a PVD coating applied to C5/C6 grade carbide substrate. It covers an external pitch range of 10 to 44 TPI and an internal pitch range of 9 to 24 TPI, making it versatile across a wide range of threading applications. The AC50C coating grade delivers wear resistance suited to steel and ferrous materials. Machinists and toolroom technicians install this insert into compatible Flo-Lock toolholders as a direct replacement unit.

This threading insert is used in CNC turning centers and manual lathes for both internal and external thread forms conforming to the 60-degree V standard, which covers Unified National (UN) and metric thread profiles. It is suited for production threading on ferrous workpieces where a coated carbide insert provides improved tool life over uncoated grades. Right-hand cutting geometry makes it appropriate for conventional thread-cutting passes. The insert size 3 designation and FLTK insert style identify the correct holder pocket geometry required at installation.

Key Features

• Carbide substrate at C5/C6 material grade with PVD coating for extended wear life
• External pitch range of 10 to 44 TPI and internal pitch range of 9 to 24 TPI
• 60-degree V included angle covers UN and similar thread standards
• Right-hand cutting geometry for standard threading direction
• Minimum corner radius of 0.0020 inches, maximum corner radius of 0.0040 inches for precise thread root geometry
• FLTK insert style fits Flo-Lock series toolholders

Compatibility

Designed for use with Flo-Lock series FLTF-3R toolholders that accept FLTK-style insert pockets. Suitable for both internal and external threading operations using the 60-degree V thread standard.

Installation Notes

This insert is installed and replaced by machinists or toolroom technicians. Power down and lock out the machine spindle before seating or removing any cutting insert. Ensure the toolholder pocket is clean and free of debris before seating the insert to maintain proper contact and cutting geometry. Verify the insert style and size designations match the toolholder specification before applying clamping force.