Allied Machine 1C52A-0112 Spade Drill Insert 1-3/8 in Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 1C52A-0112 is a solid carbide spade drill insert designed for high-performance hole-making in steel and hard materials. It features a 132-degree point angle and a physical vapor deposition (PVD) TiAlN coating that extends tool life by reducing heat buildup and friction at the cutting edge. The insert measures 1-3/8 inches in diameter, sits in a Seat Size 2 holder, and carries a manufacturer grade of C5 (P40). Machinists and tooling technicians install this insert on T-A series spade drill bodies in production and job-shop environments where consistent bore quality and insert repeatability matter.

This insert is intended for drilling operations in steel and hard workpiece materials where carbide grade C5 (P40) is the appropriate tool material. The T-A series platform is a common holder system in metalworking shops, and this insert fits that series directly. Typical applications include production drilling on CNC machining centers and manual or automated drill presses where spade-drill tooling is preferred over twist drills for larger-diameter holes. The TiAlN PVD coating makes it suitable for dry or minimal-lubricant cutting strategies common in modern production environments.

Key Features

• Solid carbide construction at C5 (P40) grade for rigidity and wear resistance in steel
• TiAlN PVD coating reduces thermal load and extends edge life in high-speed applications
• 132-degree point angle reduces thrust force and improves chip formation on entry
• 1-3/8 inch diameter with Seat Size 2 for direct fit on compatible T-A series holders
• 0.1875-inch insert thickness provides stable seating and consistent depth control

Compatibility

Designed for use with T-A series Seat Size 2 spade drill holders. Intended for drilling steel and hard workpiece materials classified under material codes P and H.

Installation Notes

Installation and changeout should be performed by a qualified machinist or tooling technician with the machine fully powered down and the spindle locked. Use the correct insert wrench or torx key specified for the holder to seat the insert firmly without over-torquing the clamping screw. Inspect the holder pocket for wear or debris before seating a new insert, as a damaged pocket will affect runout and bore quality. Follow the tooling manufacturer guidance on starting feeds and speeds when switching to a new insert or coating type.