Tool-flo 564825LJ5R Grooving Insert FLG4125 GP3 Left Hand

Product Description

The TOOL-FLO 564825LJ5R is a solid carbide grooving insert in the Flo-Lock series, designed for precision grooving and cutoff operations on CNC lathes and turning centers. It carries a GP3 manufacturer grade with a PVD-applied TiN coating over a micrograin carbide substrate, delivering edge hardness and wear resistance suited to steel and similar secondary workpiece materials. The insert is left-hand oriented with a 0.1252 inch (3.18 mm) cutting width and a maximum depth of cut of 0.2500 inch (6.35 mm). A positive rake angle of 55 degrees reduces cutting forces and helps produce clean groove walls in ferrous applications.

This insert is intended for grooving operations on turning equipment where a left-hand, positive-rake geometry is required. The FLG4125 insert style with ISO code FLG-4125L fits Flo-Lock compatible toolholders. It is well suited for finish and semi-finish grooving of steel components in production machining environments. The 3/8 inch gage diameter and 0.4530 inch cutting height are relevant for toolholder and pocket fitment verification before installation. The corner radius range of 0.0050 to 0.0100 inch supports controlled root profile at groove shoulders.

Key Features

• Solid micrograin carbide substrate with PVD TiN coating for wear resistance in steel grooving
• Left-hand cutting orientation with positive 55-degree rake angle for reduced cutting forces
• 0.1252 inch (3.18 mm) cutting width with a 0.2500 inch (6.35 mm) maximum depth of cut
• Corner radius range of 0.0050 to 0.0100 inch for controlled groove shoulder geometry
• GP3 grade designation suited to steel and secondary ferrous workpiece materials
• Flo-Lock series geometry with ISO code FLG-4125L for consistent toolholder indexing

Compatibility

Designed for use in Flo-Lock series toolholders that accept the FLG-4125L insert style. Verify gage diameter (3/8 inch) and pocket dimensions against the toolholder specification before installation.

Installation Notes

Installation is performed by a machinist or toolroom technician on a CNC lathe or turning center. Power down and lock out the machine spindle before seating or indexing the insert. Confirm toolholder pocket and clamping screw condition before installation, and ensure the insert seats fully and evenly in the pocket. Follow the toolholder manufacturer torque and clamping specifications for the insert style.