Allied Machine 132T-25 Spade Drill Insert 63/64 in Hss Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 132T-25 is a spade drill insert designed for use in T-A series spade drill holders. It measures 63/64 inches in diameter with a 132-degree point angle and is manufactured from M4-grade high speed steel with a TiN (titanium nitride) PVD coating. The TiN coating improves surface hardness and wear resistance, extending tool life in production drilling applications. At 0.1875 inches thick and built to Seat Size 2, this insert fits directly into compatible T-A series holders without modification. Machinists and tool-room professionals use this insert for high-throughput hole-making operations across a range of workpiece materials.

The 132T-25 is suited for drilling steel, cast iron, and non-ferrous metals, covering the primary workpiece material codes P, K, and N. The 132-degree point angle is a general-purpose geometry that balances entry stability with chip evacuation across these material groups. It is appropriate for both manual machining setups and CNC drilling operations in job shop and production environments where repeatable hole quality and insert interchangeability are priorities.

Key Features

• 63/64 inch diameter, Seat Size 2 — direct fit for T-A series spade drill holders
• 132-degree point angle for general-purpose drilling across multiple material types
• M4-grade high speed steel substrate for toughness and edge retention
• TiN PVD coating improves wear resistance and reduces built-up edge
• Fractional inch system sizing for straightforward holder compatibility verification
• Compatible with steel, cast iron, and non-ferrous metal workpieces

Compatibility

Designed for use with T-A series spade drill holders accepting Seat Size 2 inserts. Confirmed compatible workpiece materials include steel (P), cast iron (K), and non-ferrous metals (N).

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the spade drill holder is removed from the spindle and the machine is in a locked-out, de-energized state before replacing the insert. Seat the insert fully and evenly into the holder pocket and secure with the appropriate fastener to the holder manufacturer's specified torque procedure. Inspect the seating surface for chips or debris before installation to prevent insert rocking or premature failure.