Allied Machine 1C51A-0030 Spade Drill Insert 15/16 in Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 1C51A-0030 is a solid carbide spade drill insert designed for high-performance drilling in steel and hard materials. This insert features a 132-degree point angle and a TiAlN PVD coating that extends tool life by reducing heat buildup and wear at the cutting edge. It belongs to the T-A series and fits a Seat Size 1 holder. At 0.1563 inches thick and 15/16 inch in diameter, the insert delivers consistent bore geometry in demanding production environments. It is installed and serviced by machinists and tooling specialists working with CNC and manual drilling equipment.

This insert is suited for drilling steel and hard workpiece materials in production machining, job shop, and heavy manufacturing settings. The T-A series is a modular spade drilling system that allows the insert to be swapped without replacing the entire drill body, making it a cost-effective solution for high-volume drilling operations. The 15/16 inch diameter and Seat Size 1 designation must match the holder for proper seating and runout control.

Key Features

• 15/16 inch diameter solid carbide construction for rigidity and wear resistance
• 132-degree point angle optimized for entry into steel and hard materials
• TiAlN PVD coating reduces thermal wear and extends cutting life
• Manufacturer grade C5 (P40) rated for steel and hard material applications
• T-A series modular design allows insert replacement without changing the drill body
• Seat Size 1 designation ensures proper holder compatibility and alignment

Compatibility

Designed for use with T-A series Seat Size 1 spade drill holders. Seat size and series designation must match the holder assembly. Primary workpiece material compatibility includes steel and hard materials per material grade codes P and H.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the drill holder is fully de-energized and secured in the machine spindle before removing or seating the insert. Use the correct torque wrench and insert screws specified for the T-A series holder to avoid damaging the seating surface. Inspect the holder pocket for chips or wear before installing a new insert.