Allied Machine 151N-0024 Spade Drill Insert 3/4 in Cobalt Ticn

Product Description

The ALLIED MACHINE AND ENGINEERING 151N-0024 is a cobalt spade drill insert designed for high-performance drilling in demanding metal-cutting applications. Part of the T-A Series, this insert features a 132-degree point angle and a TiCN (Titanium Carbonitride) PVD coating that extends tool life and reduces heat buildup at the cutting edge. With a seat size of 1 and a body thickness of 0.1563 inches, it is engineered for precise fitment in compatible T-A Series spade drill holders. Machinists and tooling specialists in production machining environments rely on this insert for consistent hole quality in tough workpiece materials.

This insert is suited for drilling steel, stainless steel, cast iron, super-alloys, and titanium — workpiece material classifications P, M, K, and S. It is applicable in CNC machining centers, drill presses, and turning centers where T-A Series spade drill holders are in use. The cobalt substrate provides added toughness and heat resistance compared to standard high-speed steel, making this insert a practical choice for interrupted cuts and hard materials encountered in aerospace, automotive, and general manufacturing operations.

Key Features

• Cobalt insert material for improved toughness and elevated-temperature performance
• TiCN PVD coating reduces friction and extends cutting edge life
• 132-degree point angle suited for entry into flat or curved surfaces
• 3/4 inch diameter with seat size 1 for precise T-A Series holder fitment
• Rated for steel, stainless steel, cast iron, super-alloys, and titanium workpieces
• 0.1563 inch body thickness for consistent seating depth

Compatibility

Designed for use with T-A Series spade drill holders accepting a seat size 1 insert. Compatible workpiece materials include steel (P), stainless steel (M), cast iron (K), and super-alloys and titanium (S) per ISO material classification.

Installation Notes

Installation is performed by qualified machinists or tooling technicians following standard insert-change procedures. Ensure the machine spindle is fully stopped and the tool holder is secured in a vise or tool block before replacing the insert. Verify the insert seats flush against the pocket floor and that the clamping screw reaches the specified snug condition without over-torquing the insert screw. Inspect the seat and clamping hardware for wear or damage before each insert change to maintain dimensional accuracy.