Allied Machine 151H-.7580-IN Spade Drill Insert 0.758in Cobalt

Product Description

The ALLIED MACHINE AND ENGINEERING 151H-.7580-IN is a spade drill insert designed for high-performance drilling in demanding metalworking applications. Built from cobalt substrate and finished with an AM200 PVD coating, this insert delivers extended tool life and thermal resistance at the cutting edge. It features a 132-degree point angle optimized for accurate entry and chip control across a range of ferrous and exotic workpiece materials. At 0.758 inches in diameter and rated for Seat Size 1, it fits directly into compatible T-A series spade drill holders. Machinists and tooling professionals working in production or job-shop environments rely on this insert for consistent hole geometry and repeatable performance.

This insert is suited for drilling operations in steel, stainless steel, cast iron, super-alloys, and titanium. It belongs to the T-A series platform, a widely used modular spade drilling system in CNC and manual machining environments, including aerospace, heavy equipment, oil and gas, and general metalworking. The AM200 PVD coating is particularly effective when cutting work-hardening materials such as stainless and titanium, where heat generation at the cutting edge accelerates wear on uncoated tooling. Seat Size 1 determines holder compatibility, so confirm holder seat size before ordering.

Key Features

• 0.758 inch cutting diameter for precise hole sizing
• Cobalt substrate provides toughness and heat resistance beyond standard HSS
• AM200 PVD coating extends tool life in steel, stainless, cast iron, super-alloys, and titanium
• 132-degree point angle promotes accurate entry and effective chip evacuation
• Seat Size 1 for direct fitment into T-A series spade drill holders
• Sold individually; minimum order quantity is 2 units

Compatibility

Designed for use with T-A series Seat Size 1 spade drill holders. Compatible with primary workpiece materials classified as steel (P), stainless steel (M), cast iron (K), and super-alloys and titanium (S) per ISO material classification codes.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and locked out before seating or removing the insert. Use the correct torque driver or insert key specified for the T-A holder to avoid seat damage or insert movement during cutting. Inspect the holder seat for wear or debris before each insert change to maintain runout accuracy.