Allied Machine 131T-0023 Spade Drill Insert 23/32 in Hss Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 131T-0023 is a spade drill insert designed for high-speed steel drilling operations across a range of workpiece materials. Measuring 23/32 inches in diameter with a 132-degree point angle, this insert fits Seat Size 1 holders in the T-A series system. The M4 grade high speed steel substrate is finished with a Physical Vapor Deposition (PVD) titanium nitride (TiN) coating, which increases surface hardness and extends cutting edge life in production drilling environments. At 0.1563 inches thick, the insert is dimensionally consistent for accurate seating and repeatable hole quality.

This insert is suited for metal removal applications in industrial machining settings. Primary workpiece materials include steel, cast iron, and non-ferrous metals, making it appropriate for general-purpose drilling in job shops, manufacturing facilities, and maintenance operations. It installs into compatible T-A series spade drill holders and is sized for Seat Size 1 bodies. The fractional inch sizing system makes it a straightforward selection for shops working in standard inch dimensions.

Key Features

• 23/32 inch diameter with a 132-degree point angle for consistent entry geometry
• M4 grade high speed steel for toughness and wear resistance
• TiN coating applied via PVD process to extend cutting life and reduce friction
• Seat Size 1 fit for use with T-A series spade drill holders
• 0.1563 inch thickness for precise, repeatable seating in the holder
• Compatible with steel, cast iron, and non-ferrous metal workpieces

Compatibility

Designed for use with T-A series Seat Size 1 spade drill holders. Compatible primary workpiece materials include steel, cast iron, and non-ferrous metals.

Installation Notes

Installation is performed by a machinist or tooling technician. Ensure the holder is clean and free of chips or debris before seating the insert, as contamination can affect insert position and hole accuracy. Secure the insert according to the holder manufacturer's torque guidelines using the specified fastener. Inspect the insert for edge wear or coating breakdown at regular intervals and replace before dimensional accuracy is compromised.