Allied Machine 1C52A-31 Spade Drill Insert 31mm Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 1C52A-31 is a solid carbide spade drill insert designed for high-performance hole-making in steel and hard materials. Measuring 31 mm in diameter with a 132-degree point angle, this insert seats in a Seat Size 2 holder and is coated with TiAlN via a PVD process for extended tool life under demanding cutting conditions. At 0.1875 inches thick and weighing approximately 0.1 pounds, it fits the T-A Series tooling system. It is intended for use by machinists and tooling technicians in production drilling applications where carbide grade C5 (P40) is the appropriate material choice.

This insert is suited for drilling operations in steel and hard workpiece materials in both production and job-shop environments. The T-A Series platform is a modular spade drilling system where the insert is indexed or replaced independently from the holder, reducing tooling cost per hole. Typical applications include through-hole and blind-hole drilling on CNC machining centers and drill presses where consistent diameter and point geometry are required across high-volume runs.

Key Features

• 31 mm cutting diameter for consistent bore sizing
• 132-degree point angle suited for flat-bottomed entry and reduced thrust in steel
• Solid carbide construction at grade C5 (P40) for hardness and wear resistance
• TiAlN PVD coating extends tool life in steel and hard material cutting
• Seat Size 2 indexes into compatible T-A Series holders without retooling the body
• 0.1875-inch insert thickness for rigid seating and accurate depth control

Compatibility

Designed for use with T-A Series Seat Size 2 spade drill holders. Compatible primary workpiece materials are steel and hard materials per workpiece material codes P and H.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist following the toolholder manufacturer's seating and torque procedures. Ensure the holder and insert seat are free of chips and debris before seating the insert. Machine spindle must be fully stopped and the machine locked out before changing inserts. Follow applicable shop safety standards and machining codes when operating spade drill tooling at recommended cutting parameters.