Iscar 7003308 Clamping Key T12 Torx Indexable

Product Description

The ISCAR 7003308 is a T12 Torx-drive clamping key designed to secure indexable inserts in grooving and milling cutter toolholders. This small but critical component maintains proper insert seating and clamping force during cutting operations. It is compatible with the SR 114-018-L3.40 insert screw and fits inserts with a 17/64-inch inscribed circle. Part of the FlexFit, Mini TangSlot, and Multimaster series, this clamping key is a direct-replacement hardware item used by machinists and toolroom technicians in production and maintenance environments. The part weighs 0.406 pounds.

This clamping key is used in metalworking applications where indexable grooving and milling toolholders require reliable insert retention. It is suited for both production machining and toolholder maintenance scenarios. Compatible toolholder styles include ETS-LN08-M, MM EA, MM EB, MM EC-4, MM EC-8, MM EC-10, MM EC-CF, MM ECU, MM EFF, MM EFS, MM EFS-CF, MM ERA, MM FF, MM HBR, and MM TS-DG. It is also confirmed compatible with the LNET 082604-TN-N and LNET 082804-TN-N indexable inserts.

Key Features

• T12 Torx drive for positive engagement during tightening and loosening
• Compatible with SR 114-018-L3.40 insert screw
• Fits inserts with a 17/64-inch inscribed circle
• Spans FlexFit, Mini TangSlot, and Multimaster toolholder series
• Direct OEM-style replacement for grooving and milling cutter toolholders

Compatibility

Compatible toolholder styles: ETS-LN08-M, MM EA, MM EB, MM EC-4, MM EC-8, MM EC-10, MM EC-CF, MM ECU, MM EFF, MM EFS, MM EFS-CF, MM ERA, MM FF, MM HBR, and MM TS-DG. Compatible insert screw: SR 114-018-L3.40. Compatible inserts: LNET 082604-TN-N and LNET 082804-TN-N.

Installation Notes

Installation is typically performed by a machinist or toolroom technician. Ensure the toolholder is removed from the machine spindle and all rotational power is locked out before servicing insert clamping hardware. Use a calibrated T12 Torx driver or key wrench to avoid rounding the drive recess. Do not substitute a non-Torx driver or apply impact force to this hardware.