Tool-flo 96400808 Indexable Threading Toolholder

Product Description

The TOOL-FLO 96400808 is an indexable threading toolholder designed for internal thread cutting and grooving operations on CNC lathes and turning centers. This left-hand holder features a 0.5 x 0.5 inch square shank and an 8-inch overall length, providing rigid support for precision insert-based threading. The Flo-Lock clamping method secures the FL 2R insert firmly during cutting, maintaining consistent thread form across production runs. Coolant-through capability delivers cutting fluid directly to the insert tip, improving chip evacuation and extending insert life in deep-bore applications. Machinists and CNC operators use this toolholder for both threading and grooving in a single setup.

This toolholder is suited for internal threading in bores with a minimum diameter of 0.73 inches. The Toolholder Style A08 designation places it within the Flo-Lock series, which is designed for demanding turning applications where insert security and repeatability are critical. The multi-use capability for both grooving and threading reduces the number of tools required in a setup. Typical applications include production machining of threaded bores in ferrous and non-ferrous workpieces across job shop and high-volume manufacturing environments.

Key Features

• Internal left-hand thread orientation for left-hand cutting applications
• 0.5 x 0.5 inch square shank for rigid tool post or turret mounting
• Flo-Lock clamp holds FL 2R inserts securely under cutting load
• Coolant-through design channels fluid directly to the cutting zone
• Multi-use capability supports both threading and grooving in one holder
• 0.73-inch minimum bore diameter accommodates a range of internal threading applications

Compatibility

Designed for use with FL 2R indexable inserts within the TOOL-FLO Flo-Lock series toolholder system.

Installation Notes

Installation and operation of indexable toolholders should be performed by qualified machinists or CNC operators familiar with turning center setup procedures. Ensure the machine spindle and turret are fully powered down and locked out before mounting or removing the toolholder. Verify insert seating and clamp screw torque before initiating a cutting pass. Follow the machine manufacturer's turret clearance specifications to confirm the 8-inch overall length is compatible with the working envelope.