Allied 151A-0024 Spade Drill Insert 3/4 in Cobalt Tialn 132pt

Product Description

The ALLIED MACHINE AND ENGINEERING 151A-0024 is a spade drill insert designed for high-performance drilling in demanding metal-cutting applications. Built from cobalt high-speed steel and finished with a TiAlN (titanium aluminum nitride) PVD coating, this insert delivers extended tool life at elevated cutting temperatures. It measures 3/4 inch in diameter, carries a 132-degree point angle, and fits the T-A Series seat size 1 holder system. At 0.1563 inches thick, it is engineered for precise, repeatable fit in compatible T-A holders. Machinists and tool-room professionals use this insert where consistent bore geometry and heat resistance are required.

This insert is suited for drilling steel, stainless steel, cast iron, super-alloys, and titanium — workpiece material codes P, M, K, and S. It is a practical choice for production environments running CNC machining centers, drill presses, or manual mills where spade-style tooling is preferred for deep-hole or large-diameter drilling. The T-A Series platform is a common standard in industrial metal fabrication, tooling shops, and manufacturing facilities.

Key Features

• 3/4 inch diameter for mid-range bore applications
• Cobalt substrate provides heat resistance and toughness over standard HSS
• TiAlN PVD coating reduces friction and extends edge life at high cutting speeds
• 132-degree point angle suits a wide range of metallic workpiece materials
• T-A Series seat size 1 ensures drop-in fit with compatible Allied T-A holders
• 0.1563 inch insert thickness maintains precise axial positioning in the holder

Compatibility

Designed for use with Allied Machine and Engineering T-A Series spade drill holders with seat size 1. Compatible primary workpiece materials include steel, stainless steel, cast iron, super-alloys, and titanium (material codes P, M, K, S).

Installation Notes

Installation is performed by qualified machinists or tool-crib technicians. Ensure the machine spindle is fully stopped and locked out before seating or removing the insert. Inspect the holder pocket and seating surfaces for chips or debris before inserting — contamination affects runout and can damage the cutting edge. Follow the holder manufacturer's torque specifications for the clamp screw; do not over-torque.