Allied Machine 11821950 Indexable Drill Insert XCNT13EN CTCP435

Product Description

The ALLIED MACHINE AND ENGINEERING 11821950 is a solid carbide indexable drill insert designed for high-performance hole-making in demanding machining applications. Featuring insert style XCNT with an EN chipbreaker and manufacturer grade CTCP435, this insert delivers consistent cutting performance in cast iron, stainless steel, and steel workpieces. The insert has a 0.531-inch inscribed circle, a thickness of 0.187 inches, and a corner radius of 0.016 inches. The 88-degree included angle and 7-degree relief angle are suited for indexable drill tooling systems where insert rigidity and edge strength are critical. Weighing 0.02 pounds, it is compact and designed for precision fitment in compatible drill bodies.

This insert is intended for use in EC 25 series indexable drill systems in production machining environments. Typical applications include through-hole and blind-hole drilling in ferrous materials such as cast iron, carbon steel, and stainless steel. The neutral hand orientation makes it adaptable across a range of drill body configurations. It is commonly used in CNC machining centers and turning centers where repeatable hole quality and insert interchangeability are priorities. Machinists and tooling technicians working with multi-insert drill bodies will find this insert sized to insert size code 13 with a 0.209-inch hole diameter for secure seating.

Key Features

• Solid carbide construction with CTCP435 grade for wear resistance in ferrous materials
• EN chipbreaker geometry for effective chip control in cast iron, stainless steel, and steel
• 0.531-inch inscribed circle with 88-degree included angle and 7-degree relief angle
• 0.016-inch corner radius for controlled edge geometry and surface finish
• Neutral hand insert suitable for a range of EC 25 series drill body configurations
• Manufactured to ISO 9001:2015 quality standards

Compatibility

Designed for use in EC 25 series indexable drill bodies accepting XCNT-style inserts with insert size code 13. Verify seat geometry and clamping configuration against the drill body specification before installation.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before removing or seating inserts. Use the correct torx or hex key as specified by the drill body manufacturer to achieve proper clamping torque on the insert screw. Inspect the insert pocket for debris or wear before seating a new insert to ensure proper contact and prevent premature edge failure.