Allied 152T-0108-SP Spade Drill Insert 1-1/4 in 90 Deg Cobalt

Product Description

The ALLIED MACHINE AND ENGINEERING 152T-0108-SP is a cobalt spade drill insert engineered for high-performance hole-making in demanding metal-cutting applications. Part of the T-A Series, this insert features a 90-degree point angle and a physical vapor deposition (PVD) titanium nitride (TiN) coating that extends tool life by reducing friction and resisting heat buildup at the cutting edge. At 1-1/4 inches in diameter and 0.1875 inches thick, it seats into a Seat Size 2 T-A Series spade drill holder. Machinists and tooling specialists in production and job-shop environments typically install this insert.

This insert is suited for drilling steel, stainless steel, cast iron, superalloys, and titanium — workpiece material codes P, M, K, and S. The T-A Series spade drill system is widely used in CNC machining centers and manual lathes where replaceable-insert tooling reduces downtime compared to solid-body drills. The 90-degree point angle is a standard geometry that provides a good balance of centering ability and cutting force distribution across a broad range of ferrous and non-ferrous materials.

Key Features

• 1-1/4 inch diameter, Seat Size 2 T-A Series insert for direct holder compatibility
• Cobalt substrate provides toughness and heat resistance for hard and abrasive workpiece materials
• PVD TiN coating reduces friction and extends cutting edge life
• 90-degree point angle suits a wide range of general-purpose drilling applications
• Fractional inch measurement system for straightforward sizing in standard tooling setups
• Rated for steel, stainless steel, cast iron, superalloys, and titanium (P, M, K, S material codes)

Compatibility

Designed for use with T-A Series Seat Size 2 spade drill holders. Compatible workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium.

Installation Notes

Installation is performed by a machinist or qualified tooling technician. Before changing the insert, power down the machine and confirm the spindle is fully stopped. Seat the insert firmly and squarely into the holder pocket and secure the clamping screw to the holder manufacturer's specification using a calibrated torque driver — do not over-tighten. Inspect the seating surface for chips or debris before each insert change to prevent insert rocking or premature failure.