Allied Machine 453T-0126 Spade Drill Insert 1-13/16in Cobalt

Product Description

The ALLIED MACHINE AND ENGINEERING 453T-0126 is a GEN2 T-A series spade drill insert designed for high-performance hole-making in demanding metalworking applications. Manufactured from M4-grade cobalt high-speed steel and finished with a PVD-applied TiN coating, this insert delivers heat and wear resistance at cutting depth. The 132-degree point angle is suited for self-centering entry and chip control across a range of workpiece materials. At 1-13/16 inches diameter and Seat Size 3, it fits directly into compatible GEN2 T-A spade drill holders. Machinists and toolroom professionals working in production or job-shop environments rely on cobalt inserts like this one when carbide is cost-prohibitive or workpiece toughness demands toughness over brittleness.

This insert is rated for use on multiple primary workpiece material categories: Steel (P), Stainless Steel (M), Cast Iron (K), Super-alloys and Titanium (S), and Hard Materials (H). It is appropriate for CNC machining centers, manual lathes with live tooling, and dedicated drilling machines where deep-hole or large-diameter drilling is required. The TiN coating extends tool life on production runs and reduces built-up edge when cutting stainless and alloy steels. This is a single-insert package intended for direct replacement or initial tooling setup.

Key Features

• 1-13/16 inch diameter, Seat Size 3 — direct fit for GEN2 T-A spade drill holders
• M4-grade cobalt construction for toughness in interrupted cuts and difficult alloys
• TiN coating applied via PVD process for improved wear resistance and reduced friction
• 132-degree point angle supports accurate entry and efficient chip evacuation
• Rated for Steel, Stainless Steel, Cast Iron, Super-alloys, Titanium, and Hard Materials
• Single-insert packaging — sold individually with no minimum beyond one unit

Compatibility

Designed for use with GEN2 T-A series spade drill holders accepting Seat Size 3 inserts. Verify holder seat size and insert diameter against your holder documentation before installation.

Installation Notes

Spade drill insert replacement is typically performed by machining technicians or toolroom personnel. Power down and lock out the machine before changing any insert. Seat the insert fully and evenly in the holder pocket, and torque the clamping screw to the holder manufacturer's specification — do not rely on feel alone. Inspect the seating surface and holder pocket for chips or damage before installing a new insert, as debris under the insert will affect runout and can cause premature failure.