Carmex K40 Torx Drive Key Indexable Thread Mills

Product Description

The CARMEX K40 is a Torx drive key designed for tightening and loosening insert screws on indexable cutting tools. It provides the correct drive interface for securing indexable inserts during tooling changes on thread mills. The K40 is a compact hand tool used by machinists and toolroom technicians working with indexable toolholders. Its Torx drive profile delivers positive engagement with insert screw heads, reducing the risk of cam-out and fastener damage during routine insert changes.

The K40 is used in metalworking and machining environments where indexable thread mills require frequent insert replacement. It is suited for production shops, toolrooms, and job shops running CNC or manual threading operations. The tool is compatible with insert screws on indexable thread mill bodies that accept a Torx drive key.

Key Features

• Torx drive profile for positive engagement with insert screw heads
• Designed specifically for indexable thread mill tooling
• Compatible with insert screws used on indexable toolholders
• Compact form factor suited for toolroom and machine-side use

Compatibility

Designed for use with insert screws on indexable thread mill tooling requiring a Torx drive interface.

Installation Notes

Insert key changes are performed by machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the tool is secured or removed from the holder before changing inserts. Use the K40 to seat or remove the insert screw with controlled hand torque only - do not use power tools or extension handles on insert keys. Follow the tooling manufacturer's guidelines for proper insert seating and screw engagement.