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

Product Description

The ALLIED MACHINE AND ENGINEERING 453H-0126 is a cobalt spade drill insert designed for high-performance hole-making in demanding metal-cutting applications. It features a 1-13/16 inch diameter, a 132-degree point angle, and AM200 PVD coating applied to a Super Cobalt substrate. The insert fits Seat Size 3 holders and belongs to the GEN2 T-A series. It is installed by machinists and tooling technicians on CNC lathes, machining centers, and drill presses where indexable spade drilling is required. The combination of Super Cobalt grade and AM200 coating provides thermal resistance and edge retention during interrupted cuts and high-feed operations.

This insert is suited for drilling operations in steel, stainless steel, cast iron, superalloys, titanium, and hard materials. It is a direct-fit replacement insert for GEN2 T-A compatible spade drill holders in Seat Size 3. Typical applications include production drilling in aerospace, oil and gas, and general metalworking environments where consistent hole quality and tool life are critical requirements.

Key Features

• 1-13/16 inch diameter for Seat Size 3 GEN2 T-A spade drill holders
• Super Cobalt substrate with AM200 PVD coating for extended tool life
• 132-degree point angle reduces thrust and improves chip formation
• Compatible with steel, stainless steel, cast iron, superalloys, titanium, and hard materials (ISO material codes P, M, K, S, H)
• Fractional inch measurement system for straightforward holder matching
• 0.25 inch insert thickness for rigid seating and accurate hole geometry

Compatibility

Designed for use with GEN2 T-A series spade drill holders requiring a Seat Size 3 insert. Compatible with workpiece materials classified under ISO codes P, M, K, S, and H, including steel, stainless steel, cast iron, superalloys, titanium, and hard materials.

Installation Notes

Insert replacement should be performed by a qualified machinist or tooling technician with the machine fully powered down and the spindle locked. Use the correct torque wrench and seating screw specified by the holder manufacturer to secure the insert without over-tightening. Inspect the holder seat for chips or debris before seating the new insert, as contamination can affect insert position and hole accuracy. Follow the tool manufacturer guidelines for recommended speeds and feeds when setting up for a new insert.