Allied 483H-0122 Spade Drill Insert 1-11/16in Cobalt GEN2 T-a

Product Description

The ALLIED MACHINE AND ENGINEERING 483H-0122 is a cobalt spade drill insert designed for high-performance drilling in demanding metalworking applications. Carrying a 132-degree point angle and a Seat Size 3 designation, this insert fits GEN2 T-A series spade drill holders. The AM200 PVD coating improves wear resistance and extends tool life across a range of workpiece materials. At 0.25 inches thick and 1-11/16 inches in diameter, it is a direct-fit, indexable cutting element that replaces worn or damaged inserts without changing the holder. Machinists and tooling technicians install this insert as part of a modular spade drill system used in production and job-shop environments.

This insert is suited for drilling operations in steel, stainless steel, cast iron, super-alloys, titanium, and hard materials, covering ISO material codes P, M, K, S, and H. The GEN2 T-A series is commonly used in CNC machining centers, lathes, and drill presses where repeatable, high-feed drilling is required. It is well matched to applications where insert interchangeability and consistent hole quality across long production runs are priorities.

Key Features

• 1-11/16 inch diameter with a 132-degree point angle for aggressive chip formation
• Cobalt substrate provides toughness in interrupted cuts and hard materials
• AM200 PVD coating enhances heat and wear resistance
• Seat Size 3 fits GEN2 T-A series spade drill holders
• Indexable design allows insert replacement without disturbing the holder
• Compatible with ISO workpiece material groups P, M, K, S, and H

Compatibility

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

Installation Notes

Installation is performed by qualified machinists or tooling technicians following lockout/tagout procedures before any insert change on a powered machine. Use the correct torque wrench and insert screw specified by the holder manufacturer to seat the insert properly — do not overtighten using improvised tools. Inspect the holder seat for chips or debris before seating the new insert, as contamination can affect runout and hole quality. Follow the machine tool manufacturer guidelines for feed rate and speed when breaking in a new insert.