Allied Machine 1C51A-0023 Spade Drill Insert 23/32 in Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 1C51A-0023 is a solid carbide spade drill insert designed for high-performance hole-making in steel and hard materials. Built to T-A series specifications with a seat size 1 interface, this insert measures 23/32 inches in diameter and carries a 132-degree point angle for aggressive, accurate entry. The TiAlN PVD coating provides thermal resistance and extended tool life in demanding cutting conditions. At a thickness of 0.1563 inches, it is engineered for precision fitment into compatible T-A series spade drill holders. Machinists, tool-and-die professionals, and production floor operators working with steel workpieces are the primary users.

This insert is suited for drilling operations in steel and hard material workpieces across production machining, job shop, and MRO environments. The T-A series spade drill system is widely used in CNC machining centers and manual drill presses where replaceable insert geometry reduces tooling cost and downtime. The 23/32-inch diameter makes it a common choice for through-holes and blind holes in ferrous components. Applications span aerospace, automotive, and general metalworking where consistent hole quality and insert interchangeability are required.

Key Features

• 23/32 inch diameter solid carbide construction for rigid, chatter-resistant cutting
• 132-degree point angle for fast, accurate penetration in steel and hard materials
• TiAlN PVD coating improves heat resistance and extends cutting tool life
• Seat size 1 T-A series compatibility for quick insert changeout in the field
• Manufacturer grade C5 (P40) carbide grade matched to steel and hard material applications
• 0.1563 inch thickness ensures precise seating and repeatable positioning in the holder

Compatibility

Designed as a replacement or spare insert for T-A series seat size 1 spade drill holders. Confirmed for use in primary workpiece materials coded P (steel) and H (hard material) per ISO material classification.

Installation Notes

Insert installation should be performed by a qualified machinist following the toolholder manufacturer torque and seating procedures. Ensure the holder seat is clean and free of chips or debris before seating the insert, as contamination can cause misalignment and premature insert failure. Always verify spindle is fully de-energized and locked out before changing inserts on any machine tool. Do not overtighten the clamping screw beyond manufacturer specifications for the holder model in use.