Allied Machine 1C51T-0026 Spade Drill Insert 13/16 in Carbide

Product Description

The ALLIED MACHINE AND ENGINEERING 1C51T-0026 is a solid carbide spade drill insert designed for high-performance hole-making in steel and hard materials. It features a 132-degree point angle and a TiN (titanium nitride) PVD coating that extends cutting edge life and reduces built-up edge during drilling operations. The insert measures 0.1563 inches thick and fits a Seat Size 1 T-A series spade drill holder. It is used by machinists and tooling professionals in production drilling applications where consistent hole quality and tool life are critical.

This insert is suited for drilling steel and hard material workpieces in both production shop and job shop environments. The T-A series system is a common platform in CNC machining centers and manual drill press setups where replaceable spade inserts are used to reduce tooling cost compared to solid twist drills. The 13/16-inch diameter and Seat Size 1 designation must match the corresponding T-A series holder for proper seating and runout performance.

Key Features

• Solid carbide construction, manufacturer grade C5 (P40), suited for steel and hard materials
• TiN PVD coating reduces friction, extends tool life, and helps resist built-up edge
• 132-degree point angle for controlled entry and reduced thrust in steel applications
• 13/16-inch diameter with 0.1563-inch insert thickness for precise fitment in Seat Size 1 holders
• T-A series platform allows fast insert replacement without removing the holder from the machine

Compatibility

Designed for use with T-A series Seat Size 1 spade drill holders. Verify holder seat size and series designation before installation to ensure proper fit and runout.

Installation Notes

Installation should be performed by a qualified machinist following the holder manufacturer's torque and clamping procedures for T-A series inserts. Ensure the machine spindle is fully stopped and the tool holder is removed or secured before changing inserts. Inspect the holder seat for chips or damage before seating the new insert, as debris under the insert can cause runout and premature failure. Do not use damaged or improperly seated inserts.