Tool-flo 603600HCRN4C Threading Insert Carbide GP50

Product Description

The TOOL-FLO 603600HCRN4C is a carbide threading insert designed for both internal and external thread-cutting operations on lathes and CNC turning centers. Built to GP50 medium-grain carbide grade, it carries a Titanium Nitride (TiN) finish applied via PVD coating for extended wear resistance. The FLT insert style features an HCB chipbreaker geometry and covers internal pitches from 5 to 12 TPI and external pitches from 6 to 20 TPI at a 60-degree V thread form. Right-hand cut orientation. Thickness is 0.1950 inches with a tip-to-top height of 0.0980 inches. This insert is part of the Flo-Lock series and is sold individually with a minimum order quantity of 10 units.

This insert is suited for production and job-shop threading applications on a range of ferrous and non-ferrous workpiece materials. The GP50 grade and TiN PVD coating make it appropriate for medium-grain cutting conditions where both toughness and wear resistance are needed. Machinists and CNC operators install it in compatible Flo-Lock FLT-3R-HCB toolholders for turning internal bores and external diameters requiring 60-degree unified or metric-style V-thread profiles.

Key Features

• GP50 medium-grain carbide grade for balanced toughness and wear resistance
• Titanium Nitride (TiN) finish applied by PVD coating process
• Covers internal pitch range of 5-12 TPI and external pitch range of 6-20 TPI
• 60-degree included angle for standard V-thread profiles, internal and external
• HCB chipbreaker for improved chip control during threading passes
• Right-hand cut; insert size 3 with minimum corner radius of 0.0050 inches and maximum of 0.0080 inches

Compatibility

Designed for use in Flo-Lock series FLT-3R-HCB style toolholders. Consult the TOOL-FLO Flo-Lock toolholder lineup to confirm seat geometry and clamping compatibility before ordering.

Installation Notes

Threading inserts are installed and replaced by qualified machinists or CNC operators following machine tool lockout procedures before any insert change. Use the correct torque wrench or insert screw driver specified by the toolholder manufacturer to secure the clamping screw - do not overtighten. Inspect the insert seat and clamping pocket for chips or debris before seating a new insert. Verify thread form, pitch, and cut direction against the job setup before initiating a threading cycle.