Allied Machine 151N-.796 Spade Drill Insert 51/64 in Cobalt

Product Description

The ALLIED MACHINE AND ENGINEERING 151N-.796 is a cobalt spade drill insert designed for high-performance drilling in demanding production environments. Part of the T-A Series, this insert measures 51/64 inches in diameter and seats in a Size 1 holder. The TiCN PVD coating increases surface hardness and reduces friction, extending tool life in abrasive and tough-to-machine materials. At 0.1563 inches thick, it delivers consistent geometry and repeatable hole quality. Licensed machinists and toolroom technicians install this insert as a replaceable cutting element in compatible T-A Series spade drill bodies.

This insert is suited for drilling steel, stainless steel, cast iron, super-alloys, and titanium across ISO material groups P, M, K, and S. It is well-matched to general production drilling, job-shop applications, and CNC machining centers where spade drill systems are preferred for deep-hole or large-diameter work. The 132-degree point angle promotes accurate entry and efficient chip evacuation in these material types. The insert is sold individually with a minimum order quantity of 2.

Key Features

• 51/64 inch diameter, T-A Series Seat Size 1 for use in matching spade drill bodies
• Cobalt substrate provides toughness and heat resistance at elevated cutting speeds
• TiCN PVD coating extends wear life and reduces built-up edge in ferrous and exotic materials
• 132-degree point angle supports accurate hole entry and chip flow
• Compatible with ISO material groups P (steel), M (stainless steel), K (cast iron), and S (super-alloys and titanium)
• Replaceable insert design reduces tooling cost versus solid drills

Compatibility

Designed for use with T-A Series Seat Size 1 spade drill holders. Compatible primary workpiece materials include steel, stainless steel, cast iron, super-alloys, and titanium.

Installation Notes

Installation is performed by a qualified machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is locked out before seating or removing the insert. Use the appropriate T-A Series insert screw and torque driver as specified by the holder manufacturer. Inspect the seat and clamping screw for wear or damage before each insert change to maintain proper seating and runout control.