Allied Machine 433T-0125 Spade Drill Insert 1-25/32 in Hss Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 433T-0125 is a spade drill insert designed for high-performance drilling in metal fabrication and machining applications. Built from M4 high speed steel with a physical vapor deposition (PVD) TiN coating, this insert delivers heat resistance and extended cutting life compared to uncoated tooling. It features a 132-degree point angle and measures 1-25/32 inches in diameter, seating in Size 3 spade drill holders. This insert is part of the GEN2 T-A series and is typically installed by machinists and toolroom technicians working on CNC or manual drilling operations.

This insert is suited for drilling into steel, cast iron, and non-ferrous metals, making it a versatile option across production machining, job shop, and maintenance environments. The 132-degree point angle is appropriate for a broad range of workpiece materials and helps reduce thrust force during entry. At 0.25 inches thick, the insert fits standard Size 3 spade drill bodies. Common applications include through-hole and blind-hole drilling in structural components, flanges, and machinery parts.

Key Features

• 1-25/32 inch diameter cutting edge for large-diameter hole production
• M4 high speed steel construction for toughness and wear resistance
• TiN coating applied via PVD process for reduced friction and extended tool life
• 132-degree point angle suitable for steel, cast iron, and non-ferrous workpieces
• GEN2 T-A series design for use with compatible Size 3 spade drill holders
• 0.25 inch insert thickness for secure seating and stable cutting geometry

Compatibility

Designed for use with Size 3 spade drill holders compatible with the GEN2 T-A series from ALLIED MACHINE AND ENGINEERING. Rated for primary workpiece materials including steel (P), cast iron (K), and non-ferrous metals (N).

Installation Notes

Insert installation and replacement should be performed by a qualified machinist with the spindle stopped and machine locked out per standard lockout/tagout procedures. Use the appropriate torque wrench and insert screws specified for the holder body — do not overtighten or substitute hardware. Inspect the holder pocket for wear or debris before seating a new insert. Follow the tool manufacturer's recommended speeds and feeds for the workpiece material to avoid premature edge failure.