Allied Machine 452H-26.5 Spade Drill Insert 26.5mm Cobalt

Product Description

The ALLIED MACHINE AND ENGINEERING 452H-26.5 is a cobalt spade drill insert designed for high-performance hole-making in demanding machining applications. Built to the GEN2 T-A series standard, this insert features a 132-degree point angle and an AM200 PVD coating that extends tool life in abrasive and hard materials. At 26.5 mm diameter with a Seat Size 2 designation, it seats directly into compatible T-A spade drill holders. Machinists and tool crib professionals working in production environments rely on this insert type for consistent entry geometry and repeatable hole quality across varied workpiece materials.

This insert is suited for drilling steel, stainless steel, cast iron, super-alloys, titanium, and hard materials, covering ISO material groups P, M, K, S, and H. Typical applications include production machining on CNC lathes, machining centers, and dedicated drilling stations where spade drill systems are preferred over solid carbide or indexable alternatives. The AM200 coating is a PVD-class finish selected for thermal resistance and edge retention in interrupted cuts and continuous feed drilling operations.

Key Features

• 26.5 mm cutting diameter with Seat Size 2 for direct holder compatibility
• Cobalt insert material provides toughness in interrupted and variable-feed drilling
• 132-degree point angle reduces thrust load and improves self-centering on entry
• AM200 PVD coating delivers enhanced wear resistance across steel, stainless, cast iron, super-alloys, titanium, and hard materials
• GEN2 T-A series geometry engineered for chip control and consistent hole finish
• 0.1875 inch insert thickness for rigid seating in the holder pocket

Compatibility

Designed for use with T-A series Seat Size 2 spade drill holders compatible with the GEN2 T-A system. Verify holder seat size and series designation before installation to confirm fit.

Installation Notes

Spade drill inserts are installed and serviced by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and locked out before changing inserts. Seat the insert fully against the holder pocket faces and torque the clamping screw to the holder manufacturer specification using the appropriate Torx or hex key. Inspect the holder seat for wear, chips, or debris before each insert change to prevent seating errors that affect hole location and diameter.