Tool-flo 96401616 Indexable Threading Toolholder 1x1 in

Product Description

The TOOL-FLO 96401616 is an indexable threading toolholder designed for internal threading and grooving operations on CNC lathes and turning centers. Built in the Flo-Lock series, this left-hand toolholder features a 1 x 1 inch square shank and a 12-inch overall length. It accepts FL 3R inserts held in place by a clamp-style insert holding method. The minimum bore diameter of 1.375 inches and a center-to-cutting-edge dimension of 0.688 inches define its reach into bored or pre-drilled workpieces. Coolant-through capability supports chip evacuation and heat management during continuous threading passes.

This toolholder is suited for internal threading and grooving applications in production and job-shop turning environments. The left-hand configuration is used where spindle rotation or workpiece orientation requires a tool that cuts on the opposite side from a standard right-hand holder. The multi-use designation means a single holder can be repositioned for both threading and grooving with compatible FL 3R inserts, reducing tooling inventory requirements. Machinists and CNC operators working with ferrous and non-ferrous materials in bore diameters starting at 1.375 inches will find this holder appropriate for their setup.

Key Features

• Internal threading and grooving capability in a single Flo-Lock series toolholder
• Left-hand orientation for reverse-rotation or specific fixturing setups
• 1 x 1 inch square shank with 12-inch overall length for extended reach
• Coolant-through design aids chip removal and extends insert life
• Clamp-style insert retention for secure, repeatable FL 3R insert indexing
• Minimum bore diameter of 1.375 inches suits medium to large bore applications

Compatibility

Compatible with FL 3R series inserts. Toolholder style is A16. Designed for use in internal threading and grooving applications requiring a 1 x 1 inch shank with a minimum bore diameter of 1.375 inches.

Installation Notes

This toolholder is installed by machinists or CNC setup technicians on turning centers or manual lathes. The machine should be fully powered down and locked out before mounting or removing any toolholder. Ensure the tool post or turret bore is clean and free of burrs before seating the shank. Verify coolant-through passages are clear and connected before running the first pass.