Tool-flo 613800RN4C Threading Insert GP50 Carbide 6-20 Tpi

Product Description

The TOOL-FLO 613800RN4C is a carbide threading insert designed for precision thread cutting on both internal and external threads. Manufactured in the FLTP style and rated at material grade GP50 (C5/C6 carbide), this insert covers a wide pitch range: 5-12 TPI for internal threads and 6-20 TPI for external threads. It features a 60-degree V-thread profile and a PVD-applied Titanium Nitride finish coating for wear resistance. The insert is right-hand cut and belongs to the Flo-Lock series, making it a fit for CNC lathes and threading operations where consistent thread form and tool life are priorities. Licensed machinists and CNC operators working in production or repair environments are the primary users.

This insert is suited for threading operations in general machining environments, including job shops and production facilities running CNC or manual lathes. It handles both internal and external thread cutting across the 60-degree unified and V-thread standard, making it a versatile choice for shops producing fasteners, fittings, and threaded components in a range of materials. The GP50 grade with Titanium Nitride coating performs well in steel and cast iron applications at moderate cutting speeds.

Key Features

• FLTP insert style in the Flo-Lock series for secure seating and repeatable indexing
• GP50 carbide grade, classified C5/C6, for general-purpose threading in ferrous materials
• PVD Titanium Nitride (TiN) finish coating for extended wear resistance
• Covers internal pitch 5-12 TPI and external pitch 6-20 TPI in a single insert style
• 60-degree included angle - compatible with standard unified thread forms (internal and external)
• Right-hand cut orientation; insert size 3

Compatibility

Designed as an OEM-style replacement threading insert for TOOL-FLO Flo-Lock series toolholders accepting FLTP-style, size 3 threading inserts with a 60-degree thread profile.

Installation Notes

Threading inserts should be installed and indexed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before changing or indexing the insert. Use the appropriate torque wrench and insert key specified for the toolholder to avoid over-tightening the clamping screw, which can fracture the carbide. Verify thread pitch and hand before beginning the threading pass.