Allied Machine 4C20P-14.5 Spade Drill Insert 14.5mm Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 4C20P-14.5 is a solid carbide spade drill insert designed for high-performance hole-making in demanding materials. Built to Seat Size 0 within the GEN2 T-A series, this insert delivers precise drilling at 14.5 mm diameter with a 132-degree point angle that promotes accurate entry and reduced thrust in hard and abrasive workpiece materials. The AM300 PVD coating, applied under the C2 (K20) material grade classification, provides a tough wear surface suited for interrupted cuts and difficult alloys. This insert is intended for use by machinists and toolroom technicians working with precision drilling equipment.

This insert is engineered for applications involving stainless steel, cast iron, non-ferrous metals, and super-alloys including titanium. The GEN2 T-A series platform is a common choice in production machining environments where spade drill bodies are used in place of solid twist drills to reduce tooling cost per hole. Typical install scenarios include CNC lathe and machining center operations where coolant-through toolholders are standard. The 132-degree point geometry helps control chip formation and maintain positional accuracy when entering curved or angled surfaces.

Key Features

• 14.5 mm cutting diameter with 132-degree point angle for controlled entry and chip formation
• Solid carbide construction under C2 (K20) grade for hardness and wear resistance
• AM300 PVD coating extends tool life in stainless steel, cast iron, titanium, and super-alloys
• GEN2 T-A series, Seat Size 0 — direct replacement fit for compatible T-A spade drill bodies
• 0.125 inch thickness provides a compact insert profile within the holder pocket
• Single insert per package, minimum order quantity of one unit

Compatibility

Designed as a replacement spade drill insert for GEN2 T-A series spade drill bodies using Seat Size 0. Specific holder compatibility should be confirmed against ALLIED MACHINE AND ENGINEERING GEN2 T-A system tooling documentation before installation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician with the spindle fully de-energized and the machine locked out per applicable safety procedures. Seat and pocket surfaces on the drill body should be cleaned and inspected for damage or debris before seating the insert. Torque the retention screw to the drill body manufacturer specification found in the tooling documentation — do not estimate. Verify insert seating and runout with a dial indicator before resuming production.