Allied Machine 453T-0124 Spade Drill Insert 1-3/4 in Cobalt

Product Description

The ALLIED MACHINE AND ENGINEERING 453T-0124 is a spade drill insert designed for high-performance hole-making in demanding machining applications. This insert measures 1-3/4 inches in diameter and fits a Seat Size 3 holder. It is manufactured from M4-grade cobalt high-speed steel and finished with a PVD-applied TiN (titanium nitride) coating for extended tool life and reduced friction at the cutting edge. The 132-degree point angle is suited for a wide range of workpiece materials. It belongs to the GEN2 T-A series and carries a thickness of 0.25 inches. Installation is performed by machinists and tooling technicians on drill presses, CNC machining centers, and manual lathes equipped with a compatible T-A style spade drill holder.

This insert is engineered for use across multiple material categories, making it a versatile option for job shops and production environments. Rated workpiece materials include steel, stainless steel, cast iron, super-alloys, titanium, and hard materials, corresponding to ISO material codes P, M, K, S, and H. The TiN coating provides a hard, wear-resistant surface layer that is particularly effective when drilling abrasive or work-hardening materials such as stainless steel and super-alloys. It is appropriate for both light-duty repair work and high-volume production drilling cycles.

Key Features

• 1-3/4 inch diameter, Seat Size 3, compatible with GEN2 T-A spade drill holders
• M4-grade cobalt high-speed steel construction for toughness and heat resistance
• PVD TiN coating reduces friction and extends cutting edge life
• 132-degree point angle for broad material versatility
• 0.25 inch insert thickness for stable seating in the holder pocket
• Rated for steel, stainless steel, cast iron, super-alloys, titanium, and hard materials

Compatibility

Designed for use with GEN2 T-A series Seat Size 3 spade drill holders. Compatible workpiece material classes include ISO P (steel), M (stainless steel), K (cast iron), S (super-alloys and titanium), and H (hard materials).

Installation Notes

This insert is installed and replaced by machinists or tooling technicians. Before changing the insert, power down and lock out the spindle drive per your facility lockout/tagout procedure. Use the appropriate T-A insert wrench or torx key as specified by the holder manufacturer to seat the insert securely in the pocket — do not overtighten by feel alone, as improper clamping can cause insert shift or breakage. Inspect the holder pocket and clamping screw for wear each time an insert is replaced.