Allied Machine 182T-31 Spade Drill Insert 31mm Cobalt Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 182T-31 is a cobalt spade drill insert designed for high-performance drilling in demanding industrial applications. Part of the T-A series, this insert measures 31 mm in diameter and seats in a Size 2 holder. It features a 132-degree point angle and a Physical Vapor Deposition (PVD) TiN coating for improved wear resistance and cutting performance. At 0.1875 inches thick and 0.1 pounds, it is a compact, precision-ground cutting tool. Machinists and tool-crib professionals in metalworking and manufacturing environments rely on this insert for consistent, repeatable hole quality in production drilling operations.

This insert is engineered for use across a broad range of workpiece materials, including steel, stainless steel, cast iron, super-alloys, titanium, and hard materials, corresponding to material codes P, M, K, S, and H. It is suited for use in CNC machining centers, drill presses, and turning centers where the T-A spade drill system is in service. Typical applications include general-purpose through-hole and blind-hole drilling in job shops, aerospace component manufacturing, and heavy equipment fabrication.

Key Features

• 31 mm cutting diameter with Size 2 seat for direct holder compatibility
• 132-degree point angle reduces thrust and improves chip formation on entry
• Cobalt substrate provides elevated heat resistance over standard high-speed steel
• TiN PVD coating extends cutting edge life and reduces built-up edge
• 0.1875-inch insert thickness for dimensional consistency across replacements
• Rated for steel (P), stainless steel (M), cast iron (K), super-alloys and titanium (S), and hard materials (H)

Compatibility

Designed for use with T-A series Size 2 spade drill holders. Compatible workpiece materials include steel, stainless steel, cast iron, super-alloys, titanium, and hard materials per material classification codes P, M, K, S, and H.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel familiar with spade drill systems. Power down and de-energize the machine spindle before seating or removing the insert. Use the correct torx or hex key specified for the T-A holder to secure the insert screw to the recommended clamping torque per the holder manufacturer guidelines. Inspect the seat pocket and screw threads for chips or damage before each insert change to ensure proper seating and runout control.