Allied Machine TCGT-090202 Indexable Drill Insert

Product Description

The ALLIED MACHINE AND ENGINEERING TCGT-090202 is a solid carbide, uncoated indexable drill insert designed for precision metal-cutting operations. This TCGT-style insert features a 60-degree triangular geometry with a 7-degree relief angle, a 0.2189-inch (5.56 mm) inscribed circle, and a 0.0079-inch (0.20 mm) corner radius. With a thickness of 0.0941 inches and a cutting edge length of 0.3673 inches (9.33 mm), it is sized for indexable drill tooling systems that require consistent, repeatable performance. Licensed machinists and tooling technicians install this insert in shop and production environments where tight tolerances and surface finish are critical.

This insert is suited for use in indexable drilling applications on CNC machining centers, lathes with live tooling, and drilling stations running ferrous and non-ferrous workpieces. The uncoated solid carbide construction makes it a practical choice for applications where coating is not required or where regrind programs are in use. It is sold individually but carries a minimum order quantity of 10 units, consistent with standard tooling procurement practices in production shops.

Key Features

• TCGT insert style with 60-degree triangular geometry for positive-rake cutting action
• Solid carbide construction, uncoated, for consistent edge sharpness on a range of materials
• 7-degree relief angle reduces flank wear and supports clean hole entry
• 0.0079-inch (0.20 mm) corner radius minimizes stress concentration at the cutting edge
• Inscribed circle of 0.2189 inches (5.56 mm) fits standard TCGT pocket toolholders
• Insert size designation 090202 for straightforward cross-referencing with toolholder specifications

Compatibility

Designed as an OEM-style replacement insert for indexable drill toolholders accepting TCGT-style, 60-degree triangular inserts with a 0.2189-inch inscribed circle and standard 090202 size designation.

Installation Notes

Indexable insert replacement is performed by qualified machinists or tooling technicians. Before changing inserts, power down the spindle and verify the machine is in a safe, locked-out state per facility lockout/tagout procedures. Use the appropriate torx or hex key to seat the insert fully in the pocket without overtightening the clamp screw, as this can fracture the carbide. Inspect the insert pocket and seating surfaces for chips or debris before installing a new insert.