Allied Machine 152A-0104 Spade Drill Insert 1-1/8 in Cobalt

Product Description

The ALLIED MACHINE AND ENGINEERING 152A-0104 is a cobalt spade drill insert designed for high-performance hole-making in demanding machining applications. Part of the T-A Series, this insert measures 1-1/8 inches in diameter with a 132-degree point angle and a seat size 2 profile. The 0.1875-inch thickness and TiAlN PVD coating deliver heat resistance and extended tool life when drilling through tough workpiece materials. Machinists and tool-room professionals install this insert into compatible T-A Series spade drill holders as a replaceable cutting element, making it a cost-effective solution for production drilling operations.

This insert is suited for drilling steel, stainless steel, cast iron, super-alloys, and titanium — covering ISO material groups P, M, K, and S. It is a strong fit for job shops, aerospace, and general metalworking environments where consistent hole quality and tool longevity are priorities. The TiAlN coating performs well in both dry and minimal-quantity-lubrication setups, particularly when cutting harder ferrous and exotic alloys at elevated temperatures.

Key Features

• 1-1/8 inch diameter with T-A Series seat size 2 — direct drop-in for compatible holders
• 132-degree point angle for reduced thrust and improved chip formation
• Cobalt substrate provides toughness and resistance to heat buildup at the cutting edge
• TiAlN PVD coating extends tool life in steel, stainless steel, cast iron, super-alloys, and titanium
• 0.1875-inch insert thickness for rigid seating and accurate hole geometry
• Sold individually — direct replacement without purchasing full drill assemblies

Compatibility

Designed for use with ALLIED MACHINE AND ENGINEERING T-A Series spade drill holders accepting seat size 2 inserts. Compatible primary workpiece materials include steel, stainless steel, cast iron, super-alloys, and titanium (ISO material codes P, M, K, S).

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before removing or seating the insert. Ensure the holder pocket and clamping surfaces are clean and free of chips before seating the new insert, as debris under the insert will affect runout and hole quality. Follow the holder manufacturer's clamping torque guidelines for seat size 2 inserts.