Allied Machine 4C22P-24.5 Spade Drill Insert 24.5mm Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 4C22P-24.5 is a solid carbide spade drill insert designed for precision hole-making in demanding industrial applications. Built to GEN2 T-A series specifications with a Seat Size 2 configuration, this insert features a 132-degree point angle and an AM300 PVD coating for extended tool life under high-stress cutting conditions. With a manufacturer grade of C2 (K20), it delivers the hardness and thermal resistance required when drilling through tough workpiece materials. Licensed machinists and tooling specialists install these inserts into compatible T-A spade drill holders for high-production boring operations.

This insert is suited for cutting stainless steel, cast iron, non-ferrous metals, super-alloys, and titanium — covering ISO material groups M, K, N, and S. It is most commonly used in CNC machining centers, horizontal boring mills, and production drilling operations in aerospace, automotive, and heavy manufacturing environments. The 24.5 mm cutting diameter makes it appropriate for medium-bore applications where a solid carbide insert outperforms brazed or indexable steel alternatives in terms of dimensional accuracy and surface finish consistency.

Key Features

• Solid carbide construction with C2 (K20) manufacturer grade for hardness and wear resistance
• AM300 PVD coating classification for improved heat resistance and extended cutting life
• 132-degree point angle optimized for entry stability and chip control
• GEN2 T-A series design for compatibility with T-A spade drill holder systems
• Rated for stainless steel, cast iron, non-ferrous metals, super-alloys, and titanium
• Seat Size 2 configuration for secure, repeatable insert seating in matched holders

Compatibility

Designed for use with GEN2 T-A series Seat Size 2 spade drill holders. Compatible workpiece materials include stainless steel, cast iron, non-ferrous metals, super-alloys, and titanium (ISO material groups M, K, N, and S).

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. The machine spindle must be fully stopped and locked out before inserting or replacing the drill insert. Use the correct torx or hex key to secure the insert to the holder at the manufacturer-specified seating torque per the holder documentation — do not overtighten or use impact drivers. Inspect the insert seat and holder pocket for chips or debris before installation to ensure proper seating and runout accuracy.