Allied Machine 1023T-0121 Spade Drill Insert 1-21/32 in Hss Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 1023T-0121 is a high speed steel spade drill insert designed for precision drilling in a range of industrial and metalworking applications. This insert measures 1-21/32 inches in diameter with a 130-degree point angle and features a TiN (titanium nitride) PVD coating for improved wear resistance and tool life. At 0.3125 inches thick and 1-19/64 inches in height, it fits Seat Size C holders and is suited for production drilling operations where consistent hole quality and dimensional accuracy are required.

This spade drill insert is intended for use on ferrous and non-ferrous workpiece materials including steel, cast iron, and non-ferrous metals. It is commonly used in CNC machining centers, drill presses, and manual lathes across manufacturing, tooling, and maintenance environments. The Seat Size C designation ensures compatibility with the corresponding Allied Machine holder bodies designed for that seat size. Machinists and tool crib personnel working in job shops, OEM production, and heavy equipment repair will find this insert appropriate for through-hole and blind-hole drilling at this diameter range.

Key Features

• 1-21/32 inch diameter for large-bore drilling without solid drill tooling costs
• 130-degree point angle suited for drilling steel, cast iron, and non-ferrous metals
• High speed steel construction provides toughness and resistance to chipping
• TiN PVD coating improves surface hardness and reduces friction at the cutting edge
• Seat Size C interface for secure, repeatable seating in compatible holder bodies
• 0.3125 inch thickness supports rigidity during high-feed drilling passes

Compatibility

Designed for use with Allied Machine and Engineering Seat Size C spade drill holder bodies. Confirmed for primary workpiece materials: steel, cast iron, and non-ferrous metals.

Installation Notes

Installation is performed by qualified machinists or tool room personnel. Before inserting or changing spade drill inserts, ensure the machine spindle is fully stopped and locked out per applicable lockout/tagout procedures. Seat the insert fully and evenly into the holder body and secure all fasteners before mounting the holder in the machine. Inspect the seat and insert seating surface for chips or debris before each use to prevent insert shifting during operation.