Allied 180T-.546 Spade Drill Insert 35/64 in Cobalt Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 180T-.546 is a spade drill insert designed for high-performance drilling in demanding metal-cutting applications. Manufactured from cobalt steel and finished with a PVD-applied titanium nitride (TiN) coating, this insert delivers improved wear resistance and extended tool life compared to uncoated alternatives. It features a 132-degree point angle and a 0.125-inch thickness, sized for Seat Size 0 holders in the T-A spade drill system. Licensed machinists and tool-and-die technicians working in production environments are the primary end users.

This insert is rated for use on a broad range of primary workpiece materials including steel, stainless steel, cast iron, super-alloys, titanium, and hard materials. It fits T-A Series Seat Size 0 bodies, making it a standard interchange for shops already running Allied T-A tooling. Typical applications include through-hole and blind-hole drilling on CNC machining centers, lathes with live tooling, and manual boring mills where spade-style tooling is preferred for its economical insert replacement over solid carbide drills.

Key Features

• Cobalt insert material provides toughness and heat resistance in interrupted cuts
• TiN coating applied via PVD process reduces friction and improves surface finish on the drilled bore
• 132-degree point angle suits a wide range of metallic workpiece materials
• Seat Size 0 fits standard T-A Series spade drill bodies for quick changeover
• Rated for steel, stainless steel, cast iron, super-alloys, titanium, and hard materials (ISO P, M, K, S, H)
• Weighs 0.1 pounds — lightweight for easy handling and minimal machine spindle load

Compatibility

Designed for use with T-A Series Seat Size 0 spade drill holders. Compatible workpiece materials include steel, stainless steel, cast iron, super-alloys and titanium, and hard materials per ISO material codes P, M, K, S, and H.

Installation Notes

Installation is performed by a qualified machinist or tooling technician. Power down and de-energize the machine spindle completely before seating or removing the insert. Use the correct T-A Series torx or socket-head cap screw and appropriate driver to secure the insert to the holder body — do not overtighten by feel alone; follow the holder manufacturer torque guidelines. Inspect the seat pocket for chips or debris before each insert change to ensure proper seating and runout.