Allied Machine 15ZN-0016 Spade Drill Insert 1/2 in Cobalt

Product Description

The ALLIED MACHINE AND ENGINEERING 15ZN-0016 is a cobalt spade drill insert engineered for high-performance drilling in demanding machining applications. Built to T-A Series specifications, this insert features a 132-degree point angle and a TiCN (titanium carbonitride) PVD coating that extends tool life by reducing friction and resisting heat buildup at the cutting edge. With a 1/2 inch diameter and Seat Size Z designation, it fits directly into compatible T-A Series spade drill holders without modification. At 0.0938 inches thick, the insert is designed for precision seating and repeatable positioning. Machinists and tool-room technicians working in production environments rely on this insert for consistent hole quality across a range of workpiece materials.

This insert is rated for use on steel, stainless steel, cast iron, super-alloys, and titanium, covering ISO material groups P, M, K, and S. It is well suited for production drilling operations on CNC machining centers, horizontal boring mills, and manual lathes where a replaceable spade drill insert is preferred over a solid or brazed-tip tool. The T-A Series platform is commonly found in job shops and manufacturing facilities performing high-volume hole-making in ferrous and exotic alloy components.

Key Features

• 1/2 inch cutting diameter with Seat Size Z for direct T-A Series holder fitment
• Cobalt substrate provides toughness and heat resistance in interrupted cuts
• TiCN PVD coating reduces built-up edge and extends cutting life on ferrous materials
• 132-degree point angle suits flat-bottom and through-hole drilling on a wide range of materials
• Rated for steel, stainless steel, cast iron, super-alloys, and titanium (ISO P, M, K, S)
• Replaceable insert design lowers tooling cost versus solid drill replacement

Compatibility

Designed for use with T-A Series spade drill holders accepting a Seat Size Z insert at 1/2 inch diameter. Verify holder seat size and series designation before installation.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician with the spindle fully stopped and machine power locked out. Seat the insert fully against the holder pocket and torque the clamping screw to the holder manufacturer's specification using a calibrated torque wrench. Inspect the seating surface and cutting edges for chips or debris before securing the insert. Follow shop safety protocols and applicable OSHA machine-guarding standards when changing tooling on powered equipment.