Tool-flo 93402016D Threading Toolholder 1-1/4 Shank

Product Description

The TOOL-FLO 93402016D is an external, right-hand indexable threading toolholder from the Flo-Lock series, designed for precision threading and grooving operations on CNC lathes and turning centers. The toolholder features a 1.25-inch square shank (1-1/4 x 1-1/4 inches) and an overall length of 6 inches. It accepts FL 3R inserts secured by a clamp-style holding method, providing rigid, repeatable insert positioning across high-volume production runs. Maximum depth of cut is 0.21 inches, and the back-of-bar to cutting edge distance is 1.5 inches. No coolant-through capability is present on this model.

This toolholder is suited for external threading and grooving applications in production machining environments, including job shops and manufacturing facilities running CNC turning equipment. The right-hand orientation and FLS toolholder style make it a standard choice for conventional lathe setups where external thread forms are cut on the right-hand pass. The multi-use designation allows the same holder to serve both threading and grooving operations, reducing tooling inventory requirements on the machine.

Key Features

• External thread type with right-hand cutting orientation
• Flo-Lock series FLS toolholder style for secure insert clamping
• Accepts FL 3R indexable inserts with clamp holding method
• 1-1/4 x 1-1/4 inch square shank, 6 inches overall length
• Maximum depth of cut: 0.21 inches
• Multi-use design supports both threading and grooving operations
• No coolant-through; standard dry or flood coolant from external source

Compatibility

Compatible with FL 3R indexable inserts. Designed for use in CNC lathes and turning centers that accommodate a 1-1/4 x 1-1/4 inch square shank toolholder in an external threading application.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and all axis motion is locked out before mounting or changing toolholders. Confirm shank seating and clamp torque per the machine tool manufacturer's toolpost specifications. Verify insert orientation and thread profile match the required thread form before beginning a cut.