Tool-flo 553634LAC50C Threading Insert 10 Tpi Left Hand AC50C

Product Description

The TOOL-FLO 553634LAC50C is a carbide threading insert designed for precision thread cutting in metalworking and machining applications. Built to the FLDC310RDL75 insert style, it carries the AC50C manufacturer grade with a PVD-applied coating for extended wear resistance and edge durability. The insert holds a 60-degree included angle and cuts at 10 threads per inch (TPI) to the API Round thread standard. At 0.125 inches thick with a tip-to-top height of 0.1950 inches, this is a compact, high-precision insert suited for use on CNC lathes and threading machines. Installation is performed by qualified machinists and tooling technicians.

This insert is configured for left-hand threading and supports both internal and external thread profiles, making it adaptable to a range of threaded connection applications. The API Round thread standard makes it well suited for oil and gas industry pipe and coupling work, as well as other applications requiring API-compliant thread forms. The Flo-Lock series designation indicates compatibility with TOOL-FLO Flo-Lock toolholders designed to accept FLDC-style inserts.

Key Features

• AC50C grade carbide with PVD coating for improved wear resistance and tool life
• 60-degree included angle for API Round thread profile compliance
• 10 TPI external pitch for precise thread cutting at standard API spacing
• Left-hand configuration for reverse-thread and specialty applications
• Supports both internal and external thread cutting in a single insert style
• Insert Size 3, compact geometry at 0.125 inches thickness

Compatibility

Designed for use with TOOL-FLO Flo-Lock series toolholders accepting FLDC-style inserts. Verify toolholder seat geometry and clamping compatibility before installation.

Installation Notes

Threading inserts of this type are installed by machinists or tooling technicians using appropriate insert keys or torx drivers per toolholder manufacturer specifications. Power down and lock out all machine spindles before seating or replacing inserts. Ensure the insert pocket is clean and free of debris to maintain proper seating and thread accuracy. Follow all applicable shop safety procedures and machine tool manufacturer guidelines during tooling changes.