Allied Machine 1C23T-0128 Spade Drill Insert 1-7/8 in Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 1C23T-0128 is a solid carbide spade drill insert designed for high-performance drilling in demanding industrial applications. Built to T-A Series specifications, this insert measures 1-7/8 inches in diameter with a 132-degree point angle and 0.25 inch thickness. It carries a TiN (titanium nitride) PVD coating and is manufactured to Manufacturer Grade C2 (K20), making it well suited for metalworking operations that require consistent edge retention and dimensional accuracy. Machinists and tool-and-die professionals use this insert as a replaceable cutting element in compatible T-A Series spade drill holders.

This insert is sized for Seat Size 3 T-A Series holders and is rated for use in a range of primary workpiece materials including stainless steel, cast iron, non-ferrous metals, and super-alloys and titanium. Its broad material compatibility makes it a practical choice for job shops, aerospace component machining, heavy equipment manufacturing, and other precision drilling environments where multiple material types are encountered on the same floor.

Key Features

• Solid carbide construction at Manufacturer Grade C2 (K20) for hardness and wear resistance
• TiN PVD coating reduces friction and extends cutting life across multiple workpiece materials
• 132-degree point angle suits a wide range of drilling applications and entry conditions
• 1-7/8 inch cutting diameter with 0.25 inch insert thickness
• T-A Series Seat Size 3 format fits standard Allied Machine T-A Series holders
• Rated for stainless steel, cast iron, non-ferrous metals, and super-alloys including titanium

Compatibility

Designed for use with T-A Series Seat Size 3 spade drill holders. Compatible primary workpiece materials include stainless steel, cast iron, non-ferrous metals, and super-alloys and titanium (material codes M, K, N, S).

Installation Notes

Installation is performed by qualified machinists or tooling technicians. The machine spindle must be fully stopped and the drill holder secured before seating or removing the insert. Use the appropriate torx or insert-lock key specified for the T-A Series holder to achieve proper clamping without over-torquing the retention screw. Inspect the holder seat for chips or debris before each insert change to ensure full contact and accurate runout.