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

Product Description

The ALLIED MACHINE AND ENGINEERING 152N-0104 is a cobalt spade drill insert engineered for high-performance hole-making in demanding industrial applications. Part of the T-A Series, this insert measures 1-1/8 inches in diameter and features a 132-degree point angle for aggressive, self-centering entry. The insert carries a PVD-applied TiCN (titanium carbonitride) coating, which improves surface hardness and thermal resistance compared to uncoated tooling. At 0.1875 inches thick, it fits Seat Size 2 T-A Series holders. Machinists and tooling specialists working with CNC equipment install this insert as a replaceable cutting element, reducing the cost of maintaining a full drill body inventory.

This insert is rated for use across multiple workpiece material categories, including steel, stainless steel, cast iron, super-alloys, and titanium. That broad material compatibility makes it a practical stock item for job shops and production facilities running varied part programs. It is well-suited to applications where a through-coolant or flood-coolant setup supports chip evacuation during deep-hole drilling operations.

Key Features

• 1-1/8 inch diameter, Seat Size 2 — compatible with T-A Series drill bodies of matching seat size
• Cobalt substrate for elevated heat and wear resistance compared to standard HSS inserts
• TiCN PVD coating improves surface hardness and reduces built-up edge on difficult-to-machine materials
• 132-degree point angle promotes self-centering and reduces thrust force at entry
• 0.1875 inch insert thickness fits standard T-A Seat Size 2 holder geometry
• Rated for steel, stainless steel, cast iron, super-alloys, and titanium workpiece materials

Compatibility

Designed for use with T-A Series Seat Size 2 spade drill holders. Suitable for workpiece materials classified as steel (P), stainless steel (M), cast iron (K), and super-alloys and titanium (S) per standard ISO material group designations.

Installation Notes

Installation is performed by a machinist or tooling technician. The machine spindle must be fully stopped and the tool holder secured in a vise or fixture before seating or removing the insert. Ensure the holder pocket is clean and free of chips before placing the insert, and verify the insert is fully seated and the clamping screw is properly torqued per the drill body manufacturer's specifications. Follow the machine shop's lockout-tagout procedure before any tooling change.