Kennametal 3121225 Torx Screw Indexable Inserts

Product Description

The KENNAMETAL 3121225 is a Torx-drive clamping screw designed to secure indexable inserts in milling and turning toolholders. This small but critical hardware component keeps cutting inserts locked in position during machining operations, maintaining proper seating and preventing movement under cutting loads. The Torx drive design reduces cam-out risk during tightening, which matters when working in tight toolholder pockets. At 0.01 pounds, the screw is a lightweight replacement or spare component stocked by machinists, tool crib attendants, and CNC setup technicians who need to maintain indexable tooling at the bench or machine side.

This screw is used in industrial metal-cutting environments where indexable insert tooling is standard - production machining shops, job shops, and maintenance toolrooms running CNC lathes, mills, or machining centers. It is applicable to both milling and turning toolholder assemblies that accept indexable inserts and use Torx-drive clamping hardware. Technicians typically keep a supply of these screws on hand because they are subject to wear, cross-threading, or loss during insert changes at high-volume machines.

Key Features

• Torx drive reduces cam-out risk when tightening in confined toolholder pockets
• Compatible with indexable insert hardware for both milling and turning applications
• Lightweight at 0.01 pounds - suitable for bulk stocking in tool cribs
• Sold individually; minimum order quantity of 10 units supports shop-floor replenishment
• OEM KENNAMETAL hardware ensures dimensional consistency with original toolholder specifications

Compatibility

Designed for use with KENNAMETAL indexable toolholders requiring Torx-drive clamping screws for milling and turning insert applications. Verify the specific screw size and thread specification against your toolholder documentation before ordering.

Installation Notes

Installation is performed by machinists or toolroom technicians during insert indexing or replacement. Always use the correct Torx key size specified by the toolholder manufacturer to avoid rounding the drive recess. Do not overtighten - follow the toolholder manufacturer torque specification found in the toolholder documentation. Inspect threads on both the screw and toolholder pocket before installation; damaged threads will not properly clamp the insert and can cause insert movement during cutting.