Allied Machine 260Z0H-075F Indexable Spade Drill 7/16-1/2 in

Product Description

The ALLIED MACHINE AND ENGINEERING 260Z0H-075F is a long-series indexable spade drill designed for precision hole-making in a wide range of workpiece materials. It covers a drilling diameter range of 7/16 to 1/2 inches and reaches a maximum drill depth of 7-1/16 inches, making it well suited for deep-hole drilling applications in production and job-shop environments. The helical flute geometry promotes efficient chip evacuation, while the through-coolant design delivers coolant directly to the cutting zone. This tool is installed and operated by machinists and CNC tooling technicians working with machining centers and turning equipment.

This drill is part of the T-A Z Series and is built for general-purpose metal removal across a broad range of workpiece materials including steel, cast iron, non-ferrous metals, and high-temp alloys. The flatted cylindrical shank with a 3/4-inch diameter is suited for standard toolholders used in CNC machining centers and drill presses requiring a secure, repeatable grip. Its long-series body length of 8-1/4 inches and overall length of 10-3/8 inches position it for applications where extended reach is required without sacrificing rigidity. The coolant entry follows an axial concentric style with a 1/8 inch NPT coolant hole thread, supporting pressurized coolant systems common in production machining cells.

Key Features

• Drilling diameter range of 7/16 to 1/2 inches for flexible sizing within a single toolholder
• Maximum drill depth of 7-1/16 inches for deep-hole applications
• Helical flute geometry for improved chip evacuation and reduced cutting forces
• Through-coolant design with axial concentric entry and 1/8 inch NPT coolant hole thread
• Flatted cylindrical shank at 3/4 inches diameter for secure toolholder engagement
• Long-series body at 8-1/4 inches and 10-3/8 inches OAL for extended reach applications

Compatibility

The 260Z0H-075F is part of the Allied Machine T-A Z Series and is rated for universal primary workpiece material codes H, K, M, N, P, and S, covering carbon steel, cast iron, stainless steel, non-ferrous materials, general steel, and high-temperature alloys. Confirm toolholder bore compatibility with the 3/4-inch flatted shank before installation.

Installation Notes

Installation and operation should be performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and all energy is isolated before changing tooling. Verify that the toolholder is rated for the shank diameter and that coolant line fittings are compatible with the 1/8 inch NPT thread before connecting pressurized coolant. Follow the machine tool manufacturer and tooling manufacturer guidelines for speed and feed parameters appropriate to the workpiece material and drill diameter in use.