Allied 7C120P-.859 Spade Drill Insert 55/64 in Solid Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 7C120P-.859 is a solid carbide spade drill insert designed for high-performance drilling in steel and hard materials. It features a 140-degree point angle and an AM300 PVD coating, which reduces heat buildup and extends cutting edge life in demanding applications. At 55/64 inches in diameter with a Seat Size 20 designation, this insert belongs to the GEN3SYS XT series and is manufactured to a C1 (K35) carbide grade. Machinists and tooling technicians working in production or job-shop environments install this insert into compatible spade drill bodies for precise, repeatable hole making without center drilling.

This insert is suited for drilling operations in steel and hard workpiece materials in both production machining and maintenance environments. The GEN3SYS XT series is engineered for elevated feed rates and improved penetration in ferrous materials. The AM300 coating provides additional wear resistance when cutting through abrasive or hardened stock. Typical applications include through-hole and blind-hole drilling on CNC machining centers, lathes with live tooling, and manual mills where spade drill bodies of the appropriate seat size are already in use.

Key Features

• Solid carbide construction to C1 (K35) material grade for rigidity and wear resistance
• AM300 PVD coating classification for extended tool life in steel and hard materials
• 140-degree point angle for aggressive penetration and reduced thrust in ferrous workpieces
• GEN3SYS XT series design optimized for high feed-rate drilling applications
• Seat Size 20 interface for secure seating in compatible spade drill bodies
• Single insert per package with no minimum order above one unit

Compatibility

Designed for use with GEN3SYS XT series spade drill bodies accepting a Seat Size 20 insert. Intended for primary workpiece materials coded P (Steel) and H (Hard Material).

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and de-energize the machine spindle completely before inserting or removing the drill insert. Seat the insert fully against the pocket and torque the clamping screw according to the drill body manufacturer's specifications — do not use impact tools on insert screws. Inspect the seating surface and insert pocket for chips or debris before securing the insert to ensure accurate tool geometry.