Tool-flo 9HTC250 Tc Clamp Indexable Turning Toolholders

Product Description

The TOOL-FLO 9HTC250 is a TC-style clamp designed for indexable turning toolholders. It secures indexable inserts in on-edge turning applications and accommodates both left-hand and right-hand cutting directions from a single component. Compatible with STC-11 clamp screws, the 9HTC250 is a direct-fit replacement for toolholders in the LNFR/L, LNFR/L-API, and PCFNR styles. At 0.02 pounds, this is a compact, lightweight clamping component intended for use by machinists and CNC turning specialists maintaining indexable toolholder assemblies on turning centers and lathes.

This clamp fits on-edge turning toolholder series and is suited for production and maintenance environments where consistent insert clamping is required. The dual left-hand and right-hand cutting direction compatibility makes it a practical stocking item for shops running LNFR/L, LNFR/L-API, and PCFNR-style holders across multiple machine setups. The TC clamp style is a widely used clamping method in external turning operations on manual and CNC lathes.

Key Features

• TC clamp style for on-edge turning insert retention
• Supports both left-hand and right-hand cutting directions
• Compatible with STC-11 clamp screws
• Fits LNFR/L, LNFR/L-API, and PCFNR toolholder styles
• Lightweight at 0.02 pounds for minimal toolholder mass addition

Compatibility

Compatible with LNFR/L, LNFR/L-API, and PCFNR-style indexable turning toolholders. Designed for use with STC-11 clamp screws. Suitable for both left-hand and right-hand cutting direction applications in the on-edge turning series.

Installation Notes

Installation is performed by machinists or toolroom technicians during insert indexing or toolholder setup. Power down and lock out the machine spindle before servicing any toolholder assembly. Use the correct STC-11 clamp screw and a calibrated torque driver per the toolholder manufacturer's insert clamping specification. Inspect the clamp seating surface for wear or debris before reinstalling to ensure consistent insert clamping force.