Allied Machine 4T-140408-H Indexable Drill Insert 4T Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 4T-140408-H is a solid carbide indexable drill insert designed for use in indexable drill bodies that accept the 4T insert style. Featuring an AM480 PVD coating and a P30 material grade, this insert delivers consistent performance in steel and similar materials. The 0.80 mm corner radius and 13-degree relief angle support clean chip formation and extended edge life. At insert size 140408 with a 5.70 mm hole diameter and 14.40 mm length, this insert suits precision drilling applications where dimensional accuracy and tool life are priorities. Installation is performed by machinists and toolroom technicians.

This insert is suited for use in CNC machining centers, drill presses, and turning centers running indexable drill tooling that accepts the 4T insert geometry. The right-hand cutting direction makes it compatible with standard spindle rotation in most horizontal and vertical machining setups. Typical applications include through-hole and blind-hole drilling in ferrous workpiece materials, particularly carbon and alloy steels within the P30 grade range. The AM480 PVD coating helps resist wear and built-up edge in moderate to high feed-rate drilling operations.

Key Features

• Solid carbide construction with AM480 PVD coating for wear resistance in steel applications
• P30 material grade suited for carbon and alloy steel workpieces
• 0.80 mm corner radius for controlled chip formation and edge stability
• 13-degree relief angle reduces cutting forces and minimizes rubbing
• Right-hand cutting direction for standard spindle rotation compatibility
• Insert size 140408 with 5.70 mm hole diameter and 14.40 mm length

Compatibility

Designed as an OEM-style replacement or replenishment insert for indexable drill bodies accepting the 4T insert style. Verify holder compatibility by confirming insert style, size, and cutting direction before installation.

Installation Notes

This insert is installed by machinists or toolroom technicians using the appropriate torx or hex key specified by the drill body manufacturer. Power down and lock out the machine before seating or changing inserts. Inspect the insert pocket for chips, debris, or damage before installation to ensure proper seating and clamping. Do not exceed the feed and speed parameters recommended for the P30 grade and AM480 coating in your tooling system documentation.