Tool-flo 98001664 Threading Toolholder 1x1 Inch Shank

Product Description

The TOOL-FLO 98001664 is an external, right-hand indexable threading toolholder designed for precision thread-cutting and grooving operations on CNC lathes and manual turning centers. Built to the On-Edge series standard, it accepts T.MC 54 inserts and uses a clamp-and-pin holding method for secure insert retention during interrupted cuts and continuous threading passes. The 1 x 1 inch shank provides rigid tool support, while the 6-inch overall length suits standard turret and gang-tool setups. Weighing approximately 1 pound, this toolholder is a practical replacement or additional-station option for shops running external threading applications.

This toolholder is suited for external threading and grooving on turned components in both production and jobshop environments. The STVO toolholder style positions the insert on-edge, which is a proven geometry for generating consistent thread forms across a range of materials. It is intended for use by machinists and toolroom technicians working on CNC turning equipment where a 1 x 1 inch shank bore is available. The clamp-and-pin insert retention is compatible with standard T.MC 54 indexable inserts, allowing quick insert changes at the machine without special fixtures.

Key Features

• External threading and grooving application with On-Edge insert orientation
• Right-hand cut direction for standard CNC lathe setups
• Clamp-and-pin insert holding method for positive insert retention
• Accepts T.MC 54 indexable inserts with a 0.625 inch inscribed circle
• Maximum depth of cut of 0.29 inches for controlled material removal
• No coolant-through design; standard external coolant delivery applies
• Multi-use capability supports both threading and grooving in one holder

Compatibility

Designed for use with T.MC 54 series indexable inserts. Fits machine tool turrets and gang plates with a 1 x 1 inch shank bore. Confirm turret bore dimensions and insert series availability before ordering.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine before mounting or removing the toolholder from the turret. Ensure the shank seating surfaces are clean and free of chips before torquing the clamping bolts. Verify insert orientation and tool offset in the control before taking a cutting pass.