Iscar 4305089 Insert Screw Pentacut Grooving Pchls

Product Description

The ISCAR 4305089 is a replacement insert screw designed for indexable grooving toolholders in the PentaCut series. This screw secures cutting inserts within PCHLS-style toolholders, maintaining precise insert positioning during grooving operations on lathes and turning centers. Weighing just 0.005 pounds, it is a small but critical hardware component that directly affects insert clamping integrity and cutting performance. The T-2010/5 key driver is required for installation. This part is intended for use by machinists and tool crib technicians who maintain indexable tooling assemblies in production machining environments.

The 4305089 insert screw is used in metalworking and machining applications where PentaCut grooving toolholders are in service. It is suited for production turning environments running grooving operations on CNC lathes. This screw is compatible with a defined set of PENTA insert geometries and is sold in minimum order quantities of 10 units, making it appropriate for stocking in tool cribs and maintenance kits. It is not a cutting insert itself but a retention component for the indexable insert system.

Key Features

• Designed for PCHLS-style PentaCut grooving toolholders
• Retains indexable inserts securely during grooving operations
• Compatible with T-2010/5 key driver for installation and removal
• Lightweight at 0.005 pounds — minimal mass addition to toolholder assembly
• Sold in multiples of 10 for tool crib stocking efficiency

Compatibility

Compatible with the following PENTA inserts: PENTA 24N080NF010LS, PENTA 24N080NF010RS, PENTA 24N100NF010LS, PENTA 24N100NF010RS, and PENTA 24N119NF010LS. Toolholder style compatibility is PCHLS within the ISCAR PentaCut series.

Installation Notes

Installation and removal should be performed by a qualified machinist or tool crib technician with the correct T-2010/5 key driver — do not substitute an incorrect driver size, as this can damage the screw head. Ensure the toolholder is removed from the machine spindle and all machine motion is stopped before servicing insert screws. Inspect the screw threads and toolholder pocket threads for damage or debris before reinstalling. Do not over-torque; follow the toolholder manufacturer service documentation for applicable torque guidance.