Tool-flo 96502820 Internal Threading Toolholder 1.75 in

Product Description

The TOOL-FLO 96502820 is an indexable internal threading toolholder designed for precision thread cutting and grooving operations on lathes and turning centers. Built in the Flo-Lock series, this right-hand toolholder accepts FL 4L inserts secured by a clamp-style holding method, delivering repeatable positioning and rigid support during high-load threading passes. The 1.75 x 1.75 inch shank and 14-inch overall length give machinists reach and clearance for deep-bore work, while the integrated coolant-through capability directs cutting fluid directly to the tool tip for improved chip evacuation and tool life. Suitable for production environments where consistent thread quality and reduced cycle times are priorities.

This toolholder is applied in internal threading and grooving operations on CNC lathes and manual turning machines. The minimum bore diameter of 2.25 inches defines the smallest bore this holder can enter, making it appropriate for medium-to-large diameter internal thread applications. The Flo-Lock series is a recognized standard in the indexable threading toolholder category, commonly specified by machinists working in aerospace, oilfield, and general precision machining environments. The multi-use designation indicates the holder supports both threading and grooving insert configurations without changing the body.

Key Features

• Internal, right-hand thread cutting configuration
• 1.75 x 1.75 inch shank cross-section for rigid machine interface
• 14-inch overall length provides extended reach for deep-bore threading
• Minimum bore diameter of 2.25 inches suits medium-to-large internal diameters
• Coolant-through design channels fluid directly to the cutting zone
• Accepts FL 4L inserts with clamp-style holding for secure, repeatable indexing
• Multi-use body supports both threading and grooving applications

Compatibility

Designed for use with FL 4L indexable inserts. Toolholder style A28. Compatible with CNC and manual lathes accepting a 1.75 x 1.75 inch shank. Part of the TOOL-FLO Flo-Lock series of indexable threading toolholders.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the lathe is locked out before mounting or removing the toolholder. Verify that the shank is fully seated and clamped in the turret or tool post to the machine manufacturer's specifications before engaging the workpiece. Confirm coolant-through lines are connected and clear before initiating a cutting pass.