Allied Machine 152N-0103 Spade Drill Insert 1-3/32 in Cobalt

Product Description

The ALLIED MACHINE AND ENGINEERING 152N-0103 is a T-A Series spade drill insert designed for high-performance drilling in demanding industrial applications. The insert measures 1-3/32 inches in diameter and features a 132-degree point angle for accurate entry and efficient chip formation. Manufactured from cobalt high-speed steel and finished with a PVD-applied TiCN coating, this insert delivers improved wear resistance and thermal stability compared to standard uncoated HSS tooling. It is sized for a Seat Size 2 holder and has a thickness of 0.1875 inches. Machinists and tooling specialists install this insert as part of a modular spade drilling system.

This insert is suited for production drilling operations across a range of workpiece materials, including steel, stainless steel, cast iron, super-alloys, and titanium. The T-A Series platform is commonly used in CNC machining centers, lathes with live tooling, and manual boring mills where a replaceable insert system reduces downtime versus solid drills. It is appropriate for both roughing and through-hole drilling in job shop and high-volume production environments.

Key Features

• 1-3/32 inch diameter, Seat Size 2 — compatible with T-A Series spade drill holders
• 132-degree point angle for controlled cutting action and reduced thrust
• Cobalt construction provides elevated red hardness versus standard M2 HSS
• TiCN coating applied via PVD process for improved surface hardness and lubricity
• 0.1875 inch insert thickness for rigid seating in the holder
• Rated for use in steel, stainless steel, cast iron, super-alloys, and titanium workpieces

Compatibility

Designed for use with T-A Series Seat Size 2 spade drill holders. Compatible workpiece materials include steel (P), stainless steel (M), cast iron (K), and super-alloys and titanium (S) per ISO material classification codes as stated in the product data.

Installation Notes

Installation is performed by a machinist or tooling technician. The machine spindle must be fully stopped and the tool holder secured before seating or removing the insert. Ensure the holder seat is clean and free of chips or debris before installing the insert, as contamination can cause misalignment and premature insert failure. Follow the tool holder manufacturer's torque and clamping specifications for the retaining screw.