Kennametal 1021539 Lock Pin 3mm Hex Socket M8x1

Product Description

The KENNAMETAL 1021539 is a lock pin designed to secure clamps on indexable turning tools. It features a 3mm hex socket drive and an M8x1 thread, providing a reliable mechanical connection that keeps the clamp properly seated during cutting operations. This small but critical component prevents clamp movement under the vibration and cutting forces common in lathe and turning center applications. Installation requires only a standard 3mm hex key. Licensed machinists, tooling technicians, and CNC operators typically handle this hardware as part of routine insert and clamp maintenance.

This lock pin is used in indexable turning tool assemblies where CKM41-style clamps are specified. It is suited for both manual lathe and CNC turning center setups in production and job shop environments. Because clamp hardware is subject to wear and thread fatigue over time, keeping replacement lock pins on hand reduces downtime during insert changes. The M8x1 thread pitch is a fine-thread designation, making proper thread engagement and torque control important during installation.

Key Features

• 3mm hex socket drive for standard hex key installation and removal
• M8x1 fine thread for precise clamp engagement in indexable toolholders
• Compatible with CKM41 clamps used on indexable turning tools
• Lightweight hardware at 0.02 pounds for easy handling and stocking
• Sold individually per package; minimum order quantity of 5 units supports shop inventory replenishment

Compatibility

Designed for use with CKM41 clamps on indexable turning tools, as specified in the product data. Verify clamp type and thread specification against your toolholder documentation before ordering.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with indexable toolholder assemblies. Disengage the machine and ensure the spindle is fully stopped before servicing any clamp or insert hardware. Use a calibrated torque wrench with a 3mm hex bit to achieve proper seating without over-stressing the M8x1 thread. Inspect threads on both the pin and the clamp receiver for wear or damage before reinstalling.