Sandvik Coromant 5753609 Threading Insert TLT3L 1125

Product Description

The SANDVIK COROMANT 5753609 is a left-hand carbide threading insert in the Top Lok series, designed for both internal and external thread cutting operations. It carries the TLT3L 1125 ISO designation and features a TiAlN finish applied via a PVD coating process, which extends tool life in demanding threading applications. The insert covers an internal and external pitch range of 1.25 to 5.00 mm (5 to 20 TPI) and is configured to cut a 60-degree V thread profile. Machinists and CNC lathe operators working in production threading environments will find this insert suited for a broad range of metric and inch-pitch threading work on steel and other materials where TiAlN coatings perform well.

This insert is intended for use in CNC turning centers and manual lathes equipped with compatible Top Lok threading toolholders. The 60-degree included angle makes it applicable across standard unified and metric thread forms. With a cutting tip width of 4.95 mm (0.1950 inches) and an insert size of 3, it fits into the standard Top Lok insert pocket geometry. Both internal and external threading operations are supported, making it a versatile choice for shops running mixed threading work on a single setup.

Key Features

• TiAlN finish via PVD coating process for improved wear resistance and tool life
• Left-hand insert style (TLT..L) for left-hand threading applications
• Covers 1.25 to 5.00 mm and 5 to 20 TPI pitch range for internal and external threads
• 60-degree V thread form suits standard unified and metric thread profiles
• Insert size 3 with a corner radius of 0.10 mm (0.0040 inches) for precise thread root geometry
• Top Lok series insert for secure seating in compatible toolholders

Compatibility

Designed for use with SANDVIK COROMANT Top Lok series threading toolholders that accept size 3 TLT-3L style inserts. Specific toolholder compatibility should be confirmed against SANDVIK COROMANT toolholder documentation prior to ordering.

Installation Notes

Insert replacement should be performed by a qualified machinist with the machine powered off and fully stopped. Seat the insert firmly into the Top Lok pocket and verify secure clamping before resuming cuts. Do not exceed the pitch range specified for this insert. Follow all applicable shop safety procedures and manufacturer toolholder torque guidance when securing the clamping screw.