Allied Machine 1C51A-0028 Spade Drill Insert 7/8 in Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 1C51A-0028 is a solid carbide spade drill insert designed for high-performance drilling in steel and hard materials. It features a 132-degree point angle and a TiAlN (titanium aluminum nitride) PVD coating that resists heat and wear during aggressive cutting operations. Sized at 7/8 inch in diameter with a 0.1563 inch thickness, this insert fits Seat Size 1 holders in the T-A series system. It is intended for use by machinists and metalworking professionals who require consistent hole quality and extended tool life in production drilling environments.

This insert is suited for industrial drilling applications targeting steel and hard material workpieces in both job shop and production settings. The T-A series spade drill system is a modular platform where the insert seats into a reusable holder, allowing fast insert changes without pulling the holder from the spindle. The C5 (P40) carbide grade makes this insert appropriate for general-purpose steel cutting, including roughing passes and through-hole drilling in ferrous metals.

Key Features

• Solid carbide construction at manufacturer grade C5 (P40) for durability in steel and hard material applications
• TiAlN PVD coating provides thermal resistance and extended cutting life
• 132-degree point angle reduces thrust and improves chip formation on entry
• 7/8 inch diameter with 0.1563 inch thickness engineered for Seat Size 1 T-A series holders
• Modular insert design enables quick changeover without removing the holder from the machine

Compatibility

Designed for use with Seat Size 1 holders in the Allied Machine and Engineering T-A spade drill series. Primary workpiece materials are steel and hard materials (material codes P and H).

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's setup procedures. Ensure the spindle is fully stopped and the machine is locked out before seating or removing the insert. Use the appropriate torque wrench and insert screws specified for the T-A series holder to secure the insert properly. Inspect the insert seat for chips or debris before installation to ensure proper seating and runout.