Allied Machine 152T-0103 Spade Drill Insert 1-3/32 in Cobalt Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 152T-0103 is a cobalt spade drill insert engineered for high-performance hole-making in demanding metalworking applications. Sized at 1-3/32 inches in diameter and built to Seat Size 2, this insert features a 132-degree point angle and a TiN (titanium nitride) coating applied via PVD process. The T15 cobalt material grade provides elevated heat and wear resistance compared to standard HSS inserts. The TiN coating reduces friction and extends tool life in production drilling environments. Machinists and toolroom technicians working with spade drill holders in the T-A series will find this insert a direct-fit replacement blade for that system.

This insert is designed for drilling into steel, stainless steel, cast iron, superalloys, and titanium — workpiece material codes P, M, K, and S. It is suited for use in CNC machining centers, lathes with driven tooling, and manual drill press setups where a T-A series spade drill holder is already in service. The 132-degree point geometry is well suited for harder materials and work-hardening alloys where a more acute point angle helps reduce thrust and improve chip control. Typical users include production machinists, toolroom operators, and maintenance technicians performing deep or large-diameter hole operations.

Key Features

• 1-3/32 inch diameter, Seat Size 2 for T-A series spade drill holders
• 132-degree point angle optimized for steel, stainless, cast iron, superalloys, and titanium
• T15 cobalt material grade for superior heat and wear resistance versus standard HSS
• TiN coating via PVD process reduces friction and extends insert service life
• Fractional inch measurement system for direct imperial toolholder compatibility
• Insert thickness of 0.1875 inches for consistent seating and repeatability

Compatibility

Designed for use with T-A series spade drill holders requiring a Seat Size 2 insert at 1-3/32 inches diameter. Compatible workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium (ISO material codes P, M, K, and S).

Installation Notes

Installation is performed by a machinist or toolroom technician familiar with spade drill holder systems. Ensure the holder and machine spindle are fully powered down and locked out before seating or removing the insert. Use the correct T-A series torx or hex key to secure the insert screw to the manufacturer-specified procedure — do not overtighten or substitute fasteners. Inspect the holder seat for chips, burrs, or wear before installing a new blade to ensure proper seating and runout.