Allied Machine 152T-29 Spade Drill Insert 29mm Cobalt Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 152T-29 is a spade drill insert engineered for high-performance drilling in demanding metalworking applications. Built from cobalt T15-grade material and finished with a PVD-applied TiN (titanium nitride) coating, this insert delivers improved wear resistance and longer tool life compared to uncoated alternatives. It features a 132-degree point angle suited for general-purpose drilling into a range of ferrous and exotic workpiece materials. At 0.1875 inches thick and 29 mm in diameter, the 152T-29 seats into a Seat Size 2 T-A series spade drill holder. Licensed machinists and tool-and-die professionals specify this insert for production and job-shop drilling operations.

The 152T-29 is designed for use in T-A series Seat Size 2 spade drill holders. It is rated for drilling into Steel, Stainless Steel, Cast Iron, Super-alloys, and Titanium, covering ISO material codes P, M, K, and S. This range makes it a versatile choice across CNC machining centers, manual drill presses, and turret lathes where consistent hole geometry and dimensional accuracy are required. The insert is sold individually and ordered in single-unit multiples.

Key Features

• 29 mm cutting diameter fits Seat Size 2 T-A series spade drill holders
• Cobalt T15 insert material provides high hardness and heat resistance
• PVD TiN coating reduces friction and extends cutting edge life
• 132-degree point angle suited for general-purpose hole entry in multiple material types
• Rated for Steel, Stainless Steel, Cast Iron, Super-alloys, and Titanium (ISO codes P, M, K, S)
• 0.1875 inch insert thickness for consistent seating and rigidity

Compatibility

Designed for use with T-A series Seat Size 2 spade drill holders as specified by the manufacturer. Confirm holder seat size and series designation before installation.

Installation Notes

Spade drill inserts should be installed and changed by qualified machinists following the machine tool manufacturer's guidelines. Power down and lock out the spindle before removing or seating the insert. Verify that the holder seat and clamping surfaces are clean and free of chips before torquing the clamping screw. Inspect the insert seating and clamping hardware for wear at each tool change.