Seco 02440221 Lock Screw Torx Plus M3 Indexable Insert

Product Description

The SECO 02440221 is a countersunk lock screw designed to secure indexable inserts in drilling toolholders. Featuring a Torx Plus TP9 drive and M3 thread, this screw provides reliable clamping force to hold cutting inserts firmly in place during machining operations. At 8.50 millimeters in overall length, it is sized for compact insert pockets common in indexable drilling systems. Installation and replacement are performed by machinists and tooling technicians as part of routine insert changeovers on CNC or manual drilling equipment.

This lock screw is intended for use in indexable drilling toolholders that accept M3-thread insert screws with a Torx Plus drive interface. It is compatible with insert style C03009-T09P and is sold individually, with a minimum order quantity of 10 units. Typical applications include production drilling operations in metalworking environments where indexable insert tooling is used to extend tool life and reduce downtime.

Key Features

• Torx Plus TP9 drive for positive engagement and reduced cam-out during tightening
• M3 thread size for secure insert clamping in compatible drilling toolholders
• Countersunk head type seats flush within the insert pocket
• 8.50 mm overall length suited to standard indexable insert pocket depths
• Compatible with insert style C03009-T09P

Compatibility

Designed for use with indexable drilling toolholders requiring M3-thread, Torx Plus drive lock screws. Compatible with insert style C03009-T09P as specified by the manufacturer.

Installation Notes

Lock screw replacement is performed by qualified machinists or tooling technicians during scheduled insert changeovers. Always power down and lock out the machine spindle before accessing the insert pocket. Use a calibrated Torx Plus TP9 driver or key to seat the screw properly. Do not substitute a standard Torx driver, as the Torx Plus profile requires a matched bit to prevent drive damage.