Allied Machine 151T-0029 Spade Drill Insert 29/32 in Cobalt Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 151T-0029 is a cobalt spade drill insert designed for high-performance hole-making in demanding metal-cutting applications. Built to T-A Series specifications, this insert features a 29/32 inch diameter, a 132-degree point angle, and a TiN (titanium nitride) PVD coating applied over a T15 cobalt substrate. The TiN coating reduces friction and increases surface hardness, extending tool life in abrasive cutting conditions. This insert is installed by machinists and toolroom technicians working with T-A Series spade drill holders in CNC machining centers, drill presses, and manual lathes.

The 151T-0029 is suited for drilling into steel, stainless steel, cast iron, super-alloys, and titanium. Its Seat Size 1 designation matches it to the corresponding T-A Series holder body. Typical applications include production drilling in job shops, aerospace component machining, and general metalworking where consistent hole geometry and tool durability are required across challenging workpiece materials.

Key Features

• 29/32 inch cutting diameter in Seat Size 1 T-A Series configuration
• T15 cobalt insert material provides toughness and heat resistance at elevated cutting speeds
• TiN PVD coating reduces friction and improves wear resistance
• 132-degree point angle suited for flat-bottomed entry and reduced thrust in hard materials
• Compatible with steel, stainless steel, cast iron, super-alloys, and titanium workpieces (ISO material codes P, M, K, S)
• 0.1563 inch insert thickness for precise seating in the holder

Compatibility

Designed for use with ALLIED MACHINE AND ENGINEERING T-A Series Seat Size 1 spade drill holders. Verify holder seat size and insert series designation before installation to ensure proper fit and cutting geometry.

Installation Notes

Insert installation and replacement should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before removing or seating the insert. Clean the holder pocket and seating surfaces before installing the new insert to prevent seating errors that affect hole accuracy. Follow the holder manufacturer torque guidelines for the clamping screw — do not over-torque, as this can damage the insert or holder seat.