Allied Machine 1C50A-.640 Spade Drill Insert 41/64 in Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 1C50A-.640 is a solid carbide spade drill insert designed for high-performance hole-making in steel and hard materials. Measuring 41/64 inches in diameter with a 132-degree point angle, this insert delivers precise entry geometry and reduced thrust forces in demanding drilling applications. The TiAlN (titanium aluminum nitride) PVD coating extends tool life by improving heat resistance and reducing wear at elevated cutting temperatures. At 0.125 inches thick and weighing 0.1 pounds, it is a compact, purpose-built insert for production drilling environments where consistent performance and repeatable hole quality are required.

This insert fits the T-A Series holder system and is suited for use in machining centers, drill presses, and CNC lathes across job shop and production environments. It is rated for Seat Size 0 holders in the T-A platform. Primary workpiece materials include steel and hard materials, making it applicable to structural fabrication, tool-and-die, and general metalworking operations. Machinists and tooling specialists working with ferrous alloys will find this insert compatible with standard T-A Series bodies designed for the 41/64 inch diameter range.

Key Features

• 41/64 inch diameter with 132-degree point angle for reduced thrust and clean entry in steel
• Solid carbide construction at manufacturer grade C5 (P40) for rigidity and wear resistance
• TiAlN PVD coating improves heat resistance and extends service life in ferrous materials
• Seat Size 0 compatibility fits standard T-A Series drill bodies
• 0.125 inch insert thickness provides consistent seating and repeatable indexing
• Rated for steel (P) and hard material (H) workpiece classifications

Compatibility

Designed for use with T-A Series Seat Size 0 spade drill holders. Compatible with workpiece materials classified as steel (P) and hard material (H) per standard ISO material group designations. Consult the T-A Series holder selection guide to confirm body compatibility for the 41/64 inch diameter.

Installation Notes

Installation is performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and the tool is secured in the tool holder before seating or removing the insert. Use the appropriate torque wrench and insert screw specified for the T-A Series holder body — do not overtighten or substitute fasteners. Inspect the insert seat for chips or contamination before seating to ensure flush contact and accurate positioning.