Allied Machine 151A-0025 Spade Drill Insert 25/32 in Cobalt

Product Description

The ALLIED MACHINE AND ENGINEERING 151A-0025 is a cobalt spade drill insert designed for high-performance hole-making in demanding industrial applications. Part of the T-A series, this insert features a 132-degree point angle and a physical vapor deposition (PVD) titanium aluminum nitride (TiAlN) coating. The TiAlN coating provides thermal resistance and wear protection at elevated cutting speeds. The insert fits a Seat Size 1 holder and measures 0.1563 inches in thickness. Weighing 0.1 pounds, it is a direct, replaceable cutting element used in modular spade drill tooling systems across metalworking environments.

The 151A-0025 is suited for drilling operations in steel, stainless steel, cast iron, super-alloys, and titanium workpieces. These correspond to ISO material groups P, M, K, and S. The T-A series spade drill system is widely used in production machining environments including general manufacturing, aerospace component production, and heavy equipment fabrication where consistent hole quality and insert interchangeability are required. This insert is sold individually.

Key Features

• 25/32 inch cutting diameter with Seat Size 1 compatibility
• 132-degree point angle for reduced thrust and efficient chip formation
• Cobalt substrate provides toughness in interrupted cuts and abrasive materials
• TiAlN PVD coating extends tool life in high-temperature cutting conditions
• Engineered for steel, stainless steel, cast iron, super-alloys, and titanium workpieces
• Part of the modular T-A series system allowing fast insert changes without removing the holder

Compatibility

Designed for use with T-A series Seat Size 1 spade drill holders. Compatible workpiece materials include steel, stainless steel, cast iron, super-alloys, and titanium (ISO groups P, M, K, and S).

Installation Notes

Installation is performed by a qualified machinist or tooling technician. The machine spindle must be fully stopped and the tool holder secured in a vise or tool block before seating or removing the insert. Use the appropriate T-A series insert screw and torque driver as specified by the holder manufacturer. Inspect the insert seat for chips or debris before mounting to ensure proper seating and runout control.