Allied Machine 152T-35-SP Spade Drill Insert 35mm Cobalt Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 152T-35-SP is a spade drill insert engineered for high-performance hole-making in demanding industrial applications. Part of the T-A series, this insert measures 35 mm in diameter and features a 90-degree point angle for accurate entry and reduced thrust forces. Constructed from Super Cobalt with a PVD-applied Titanium Nitride (TiN) coating, it delivers extended tool life and heat resistance across a broad range of workpiece materials. At 0.1875 inches thick and weighing approximately 0.1 pounds, it fits Seat Size 2 T-A series holders. Installation is performed by qualified machinists or tooling technicians.

This insert is designed for production drilling in steel, stainless steel, cast iron, super-alloys, and titanium workpieces. It is suited for CNC machining centers, lathes, and dedicated drilling machines where repeatable hole quality and tool longevity are priorities. The TiN coating reduces friction at the cutting edge, making it a practical choice for interrupted cuts and continuous drilling cycles in job shop and high-volume manufacturing environments alike.

Key Features

• 35 mm cutting diameter with a 90-degree point angle for accurate hole entry
• Super Cobalt substrate provides toughness and heat resistance in difficult materials
• PVD TiN coating reduces friction and extends edge life
• Seat Size 2 compatibility fits standard T-A series spade drill holders
• 0.1875 inches insert thickness for rigid, stable seating in the holder pocket
• Rated for steel, stainless steel, cast iron, super-alloys, and titanium (ISO material codes P, M, K, S)

Compatibility

Designed for use with T-A series Seat Size 2 spade drill holders. Compatible with primary workpiece materials including steel, stainless steel, cast iron, super-alloys, and titanium as indicated by ISO material codes P, M, K, and S.

Installation Notes

Installation is performed by a qualified machinist or tooling technician. Before seating or replacing the insert, ensure the machine spindle is fully stopped, locked out, and the holder pocket is clean and free of chips or debris. Use the appropriate torque wrench and insert screw per the holder manufacturer specifications to secure the insert without over-tightening. Inspect the seating pocket for wear or damage before each insert change to maintain hole quality and prevent premature insert failure.