Allied 151A-.765 Spade Drill Insert 49/64 in Cobalt Tialn

Product Description

The ALLIED MACHINE AND ENGINEERING 151A-.765 is a cobalt spade drill insert designed for high-performance hole-making in demanding industrial applications. Part of the T-A series, this insert features a 132-degree point angle and a titanium aluminum nitride (TiAlN) physical vapor deposition (PVD) coating that improves wear resistance and heat tolerance at the cutting edge. The insert measures 49/64 inch in diameter with a Seat Size 1 designation and a thickness of 0.1563 inches. It is suited for machinists and toolroom professionals working in production drilling operations where insert interchangeability and consistent geometry are required.

This insert is designed for use in T-A series spade drill holders with a Seat Size 1 bore. It targets steel, stainless steel, cast iron, super-alloys, and titanium workpieces, making it appropriate for aerospace, heavy equipment, and general metalworking environments. The TiAlN coating performs well in dry or minimal-lubrication cutting conditions where heat generation at the cutting zone is a primary concern. It is sold individually and is intended for use by skilled machinists and CNC operators performing precision drilling operations.

Key Features

• 49/64 inch cutting diameter with Seat Size 1 T-A series compatibility
• 132-degree point angle for controlled entry and reduced thrust force
• Cobalt substrate provides toughness in interrupted cuts and difficult-to-machine alloys
• TiAlN PVD coating extends tool life in high-temperature cutting conditions
• Engineered for steel, stainless steel, cast iron, super-alloys, and titanium workpieces
• 0.1563 inch insert thickness for precise seating in compatible holders

Compatibility

Designed for use with T-A series spade drill holders with a Seat Size 1 insert pocket. Suitable for workpiece materials classified under ISO codes P (steel), M (stainless steel), K (cast iron), and S (super-alloys and titanium).

Installation Notes

Installation is performed by machinists or toolroom technicians. Ensure the holder bore and insert seat are clean and free of chips or debris before seating the insert. Follow the tool manufacturer's torque specifications for the insert clamping screw as indicated on the holder documentation. Inspect the insert seat and locating surfaces for wear before each insert change to maintain positional accuracy.