Allied Machine 1C22T-0108 Spade Drill Insert 1-1/4 in Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 1C22T-0108 is a carbide spade drill insert engineered for high-performance drilling in demanding industrial applications. Manufactured to the T-A series standard, this insert features a 132-degree point angle and a physical vapor deposition (PVD) titanium nitride (TiN) coating over a C2 (K20) carbide substrate. The TiN coating reduces friction and extends tool life in abrasive cutting conditions. At 1-1/4 inches in diameter and a seat size of 2, this insert mounts into compatible T-A series spade drill holders. It is installed and used by machinists, toolroom technicians, and CNC operators in production and job-shop environments.

This insert is suited for drilling operations in stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The 132-degree point geometry is a general-purpose angle that balances chip formation and thrust load across multiple workpiece materials. Typical applications include through-hole and blind-hole drilling on vertical machining centers, horizontal mills, and lathe turrets where a spade drill holder is already in use. The fractional-inch sizing makes it a direct fit for standard inch-unit T-A series tooling setups common in North American shops.

Key Features

• 1-1/4 inch diameter, seat size 2, T-A series compatibility
• 132-degree point angle for general-purpose multi-material drilling
• C2 (K20) carbide grade balances hardness and toughness
• PVD TiN coating reduces friction and improves wear resistance
• Rated for stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• Fractional inch system sizing for direct compatibility with inch-unit toolholders

Compatibility

Designed for use with T-A series spade drill holders that accept a seat size 2 insert at 1-1/4 inches diameter in fractional inch configurations. Consult the holder manufacturer specifications to confirm seat size and insert retention style before installation.

Installation Notes

This insert is installed by a qualified machinist or toolroom technician. Always power down and lock out the machine spindle before seating or removing the insert. Ensure the holder pocket and insert seat are clean and free of chips or debris before clamping to achieve proper seating and runout. Follow the holder manufacturer torque guidelines for the retaining screw and verify insert security before initiating a cut.