Allied Machine 1C50A-0021 Spade Drill Insert 21/32 in Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 1C50A-0021 is a solid carbide spade drill insert designed for high-performance hole-making operations in steel and hard materials. Built to the T-A series specification with a Seat Size 0, this insert features a 132-degree point angle optimized for accurate entry and chip control. The TiAlN PVD coating provides thermal resistance and extended tool life when cutting ferrous and hardened workpiece materials. At 0.125 inches thick and 21/32 inch in diameter, this insert mounts into compatible T-A series spade drill holders used in CNC machining centers, lathes, and drill presses across production and job-shop environments.

This insert is intended for cutting steel and hard materials, corresponding to material grades P and H. It carries a manufacturer grade of C5 (P40), placing it in the cemented carbide classification suited for interrupted and continuous cuts in ferrous metals. Typical applications include production drilling in aerospace, automotive, and general metalworking shops where consistent hole quality and long insert life are required. Installation is performed by machinists or tooling technicians familiar with T-A series holder systems.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous cutting
• TiAlN PVD coating provides thermal and oxidation resistance at elevated cutting temperatures
• 132-degree point angle supports accurate drill entry and reduced thrust force
• Seat Size 0 for direct fitment into compatible T-A series spade drill holders
• Manufacturer grade C5 (P40) rated for steel and hard material cutting classifications P and H
• 0.125 inch insert thickness for consistent seating depth and repeatable performance

Compatibility

Designed for use with T-A series spade drill holders accepting a Seat Size 0 insert. Intended for drilling steel and hard materials in CNC and manual machine tool setups.

Installation Notes

Insert installation and replacement should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before removing or seating the insert. Use the appropriate T-A series torx or insert-retention hardware specified by the holder manufacturer, and inspect the holder seat for chips or wear before installation. Do not exceed the cutting parameters recommended for the C5 (P40) carbide grade and workpiece material combination.