Allied Machine 1C51A-0024 Spade Drill Insert 3/4 in Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 1C51A-0024 is a solid carbide spade drill insert designed for high-performance drilling in steel and hard materials. Built to T-A Series specifications, this insert measures 3/4 inch in diameter with a 132-degree point angle and seats in a Size 1 holder. The TiAlN PVD coating provides thermal resistance and wear protection during high-speed cutting operations. At 0.1563 inches thick and manufactured to C5 (P40) grade, this insert delivers consistent cutting geometry and tool life in demanding production environments. Installation is performed by machining professionals and tooling technicians.

This insert is suited for drilling steel and hard materials in production machining, job shop, and manufacturing applications. The T-A Series system uses replaceable spade drill inserts mounted in dedicated holders, making it a cost-effective solution for through-hole and blind-hole drilling. The 3/4 inch diameter and Size 1 seat make this insert compatible with corresponding T-A Series holders configured for that seat size. It is used in CNC machining centers, lathes, and drill presses where consistent bore geometry and tool change efficiency are required.

Key Features

• Solid carbide construction for rigidity and wear resistance in steel and hard material drilling
• TiAlN PVD coating improves heat resistance and extends tool life at elevated cutting speeds
• 132-degree point angle optimizes chip formation and reduces thrust in through-hole drilling
• C5 (P40) manufacturer grade suited for machining steel and hard workpiece materials
• T-A Series insert system allows quick insert changes without removing the holder from the machine
• 0.1563 inch insert thickness provides consistent seating depth and repeatable cutting geometry

Compatibility

Designed for use with T-A Series Size 1 spade drill holders configured for 3/4 inch diameter inserts. Compatible with primary workpiece materials classified as Steel (P) and Hard Material (H) per ISO material classification.

Installation Notes

Insert installation and replacement should be performed by a qualified machining technician. Power down and lock out the machine spindle before removing or seating the insert in the holder. Use the appropriate torque wrench and insert screw specified by the holder manufacturer to secure the insert — do not overtighten by hand. Inspect the insert seat for chips or debris before seating a new insert to ensure proper contact and cutting geometry.