Allied Machine 152T-0108-FB Spade Drill Insert 1-1/4 in Cobalt

Product Description

The ALLIED MACHINE AND ENGINEERING 152T-0108-FB is a spade drill insert engineered for high-performance hole-making in demanding machining applications. Part of the T-A series, this insert features a 1-1/4 inch diameter, a 180-degree point angle, and is manufactured from Super Cobalt with a TiN (titanium nitride) PVD coating for extended tool life and heat resistance. At 0.1875 inches thick, the insert seats into a Seat Size 2 T-A spade drill holder. Machinists and tool-crib professionals in production and job-shop environments rely on this insert for consistent hole quality in tough materials.

This insert is designed for use in ferrous and exotic workpiece materials including steel, stainless steel, cast iron, superalloys, and titanium. The T-A spade drill system is widely used in CNC machining centers and manual drill presses where deep-hole or large-diameter drilling is required. The 180-degree flat point geometry reduces axial thrust and produces a flat-bottomed entry, making it suitable for cross-holes, interrupted cuts, and through-hole operations in production environments.

Key Features

• 1-1/4 inch diameter spade drill insert for Seat Size 2 T-A holders
• Super Cobalt insert material for improved hardness and heat resistance over standard cobalt grades
• TiN PVD coating reduces friction and extends cutting edge life
• 180-degree point angle provides flat-bottom entry and reduces thrust in through-hole drilling
• Rated for primary workpiece materials: steel, stainless steel, cast iron, superalloys, and titanium (ISO material codes P, M, K, S)
• Fractional inch sizing system for direct compatibility with standard T-A holder inventories

Compatibility

Designed for use with Allied Machine and Engineering T-A series Seat Size 2 spade drill holders. Compatible with primary workpiece materials including steel, stainless steel, cast iron, superalloys, and titanium as identified by ISO codes P, M, K, and S.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the tool holder is secured in the spindle or a vise before seating or removing the insert. The insert must be properly seated and fastened in the holder per the holder manufacturer torque guidance before use. Inspect the insert seat and clamping screw for wear or damage before each insert change.