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The TOOL-FLO 6334125RN4C is a solid carbide grooving insert in the Flo-Lock series, designed for precision grooving and parting operations on CNC lathes and turning centers. Manufactured to insert style FLGD3125 with a GP50 grade substrate and a PVD-applied TiN coating, this right-hand insert delivers a 0.125 inch cutting width and a maximum depth of cut of 0.25 inches. The insert seats and clamps securely using a clamp-style holding method, making it well suited for repetitive, high-volume turning work where consistent groove geometry is required. Machinists and tool-room technicians are the primary users of this insert.
This insert is intended for grooving and parting operations in metalworking environments, with steel listed as a compatible secondary workpiece material. The TiN coating improves surface hardness and wear resistance, extending tool life in steel-cutting applications. The Flo-Lock series is designed for clamp-style toolholders that accept FLGD-style inserts, making this a direct replacement for worn or damaged inserts in compatible tooling setups. It is a single-end insert and is not reversible, so orientation during installation is critical.
Designed as an OEM-style replacement grooving insert for Flo-Lock series clamp-style toolholders that accept FLGD3125 right-hand inserts. The manufacturer catalog number FLGD-3125R may be used for cross-reference when sourcing compatible toolholder bodies.
Installation should be performed by a qualified machinist or toolroom technician with the machine fully powered down and the spindle locked before changing inserts. Use the appropriate torx or hex key as specified by the toolholder manufacturer to seat the clamp; do not overtighten, as this can chip or fracture the carbide insert. Confirm right-hand orientation before clamping, as this is a single-end, non-reversible insert. Inspect the toolholder pocket for chips or debris before seating the new insert.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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