Allied Machine 153T-0124 Spade Drill Insert 1-3/4 in Cobalt Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 153T-0124 is a spade drill insert designed for high-performance hole-making in demanding industrial applications. Built from cobalt high-speed steel and finished with a TiN (titanium nitride) PVD coating, this insert delivers improved wear resistance and longer tool life compared to uncoated alternatives. It measures 1-3/4 inches in diameter, features a 132-degree point angle, and fits Seat Size 3 holders in the T-A series system. At 0.1 pounds, the insert is a precision replacement component installed by machinists and tooling technicians in production and job-shop environments.

This insert is intended for use in T-A series spade drill holder systems. It is suited for drilling operations in steel, stainless steel, cast iron, super-alloys, and titanium workpiece materials, corresponding to material codes P, M, K, and S. Typical applications include through-hole and blind-hole drilling on CNC machining centers, lathes, and drilling machines where consistent hole diameter and tool life are priorities. The 132-degree point geometry is appropriate for a broad range of ferrous and high-strength alloy materials commonly encountered in aerospace, automotive, and general manufacturing.

Key Features

• 1-3/4 inch cutting diameter with Seat Size 3 for T-A series holder compatibility
• Cobalt substrate provides elevated heat resistance for difficult-to-machine alloys
• TiN PVD coating reduces friction and extends cutting edge life
• 132-degree point angle suited for steel, stainless steel, cast iron, super-alloys, and titanium
• 0.25 inch insert thickness for stable seating and accurate hole geometry

Compatibility

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

Installation Notes

This insert is installed and replaced by machinists or tooling technicians. Always de-energize and lock out the machine before removing or seating an insert. Ensure the holder pocket and insert seat are clean and free of chips or debris before installation to prevent seating errors that affect hole accuracy. Follow the holder manufacturer torque and clamping specifications for the T-A series seat when securing the insert.