Allied 151T-0026 Spade Drill Insert 13/16 in Cobalt Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 151T-0026 is a cobalt spade drill insert designed for high-performance hole-making in demanding metalworking applications. Built to Seat Size 1 in the T-A series, this insert features a 132-degree point angle and a TiN (titanium nitride) PVD coating applied over a T15 cobalt substrate. The TiN coating reduces friction and extends tool life when drilling through abrasive or work-hardening materials. At 0.1563 inches thick and 13/16 inches in diameter, it fits directly into compatible T-A series spade drill holders without modification. Licensed machinists, tool-and-die technicians, and production drilling operators are the primary users of this insert.

This insert is suited for production and job-shop environments where consistent hole quality and insert longevity are required. The T15 cobalt grade and TiN PVD coating make it appropriate for drilling steel, stainless steel, cast iron, superalloys, and titanium. It is a fractional-inch insert intended for use in T-A series spade drill holder bodies that accept Seat Size 1 inserts. Applications include structural fabrication, aerospace component machining, heavy equipment manufacturing, and general metalworking where through-coolant or flood coolant is commonly used.

Key Features

• 13/16 inch diameter, Seat Size 1 for T-A series spade drill holders
• 132-degree point angle for reduced thrust and improved chip formation in metals
• T15 cobalt insert material for heat and wear resistance in tough alloys
• TiN PVD coating reduces friction and extends cutting edge life
• Compatible with primary workpiece materials including steel, stainless steel, cast iron, superalloys, and titanium
• Fractional inch system sizing for direct replacement in imperial tooling setups

Compatibility

Designed for use in T-A series spade drill holder bodies that accept a Seat Size 1 insert. Suitable for primary workpiece material codes P (steel), M (stainless steel), K (cast iron), and S (superalloys and titanium) per ISO material classification.

Installation Notes

Insert installation and replacement should be performed by a qualified machinist or toolroom technician with the spindle fully stopped and machine power locked out. Use the manufacturer-recommended insert screw and driver to seat the insert flush against the holder pocket without over-torquing. Inspect the holder seat for chips or damage before installing a new insert. Follow your facility safety procedures and machine tool manufacturer guidelines when returning the tool to service.