Tool-flo 613800LN4C Threading Insert GP50 Carbide Left Hand

Product Description

The TOOL-FLO 613800LN4C is a left-hand carbide threading insert in the FLTP style, designed for both internal and external thread cutting applications. Built to the GP50 manufacturer grade with a C5/C6 material grade, this insert features a 60-degree V-thread form and a PVD-applied Titanium Nitride finish coating. It handles external pitches from 6 to 20 TPI and internal pitches from 5 to 12 TPI. The insert measures 0.098 inches tip to top and 0.195 inches in thickness, with a corner radius range of 0.005 to 0.008 inches. It is sized as an Insert Size 3 and is part of the Flo-Lock series.

This insert is suited for threading operations on lathes and CNC turning centers where left-hand thread profiles are required. It performs in both internal and external threading scenarios across a range of ferrous and non-ferrous materials. The Titanium Nitride PVD coating extends tool life by reducing friction and improving wear resistance, making it a practical choice for production-volume threading work in machine shops and manufacturing environments. A minimum order quantity of 10 applies.

Key Features

• Left-hand insert orientation for left-hand thread cutting
• Handles both internal (5-12 TPI) and external (6-20 TPI) threading
• GP50 grade carbide with C5/C6 material classification
• PVD Titanium Nitride finish coating for improved wear resistance
• 60-degree V-thread form for standard unified thread profiles
• Flo-Lock series design for secure seating in compatible toolholders

Compatibility

Designed for use in FLTP-style Flo-Lock series threading toolholders that accept Insert Size 3 inserts. Consult TOOL-FLO toolholder documentation to confirm seat and clamp compatibility before installation.

Installation Notes

Threading insert replacement should be performed by a qualified machinist or CNC operator. Power down and lock out the machine before accessing the toolholder. Use the appropriate torx or hex key to remove and seat the insert without overtightening the clamp screw, as this can fracture carbide. Verify thread form, hand orientation, and pitch range against the workpiece requirements before cutting.