Allied Machine HTA0A05-075F Indexable Spade Drill 1/2 in

Product Description

The ALLIED MACHINE AND ENGINEERING HTA0A05-075F is an indexable spade drill designed for high-performance hole-making in a wide range of workpiece materials. Built to T-A Pro Series standards, this tool features a 1/2 inch minimum drill diameter, a straight flute geometry, and through-coolant capability via axial concentric entry. The flatted shank measures 3/4 inch in diameter and seats into compatible tool holders for secure, repeatable positioning. With a 6.3 inch overall length and a body length of 4.27 inches, this drill is suited for standard-depth applications where dimensional accuracy and chip evacuation are critical. Machinists, toolroom technicians, and CNC operators working in production environments are the primary users.

This spade drill is rated for universal primary workpiece materials, covering steel, stainless, cast iron, non-ferrous alloys, high-temperature alloys, and hardened materials as indicated by material codes P, M, K, N, S, and H. It fits standard-depth drilling applications with a drill depth by diameter ratio of 5xD and a maximum drill depth of 3.015 inches. The T-A Pro Series is a modular indexable platform, meaning the drill body accepts interchangeable inserts rather than requiring full tool replacement. This makes it a common choice in job shops and production facilities running high-volume drilling cycles on CNC lathes, machining centers, and drilling machines.

Key Features

• Through-coolant delivery via axial concentric entry for improved chip evacuation and tool life
• Straight flute design suited for drilling across a broad range of workpiece materials
• Flatted shank provides positive drive and prevents rotation in the holder
• Indexable insert design reduces tooling cost compared to solid-body replacements
• 5xD depth-to-diameter ratio supports standard through-hole and blind-hole applications
• T-A Pro Series platform for compatibility with Allied Machine modular tooling systems

Compatibility

Designed for use with Allied Machine and Engineering T-A Pro Series 0 tooling systems. Compatible with holders and inserts within the T-A Pro 0 Series platform. Maximum drill diameter with appropriate insert is 0.695 inches. Consult Allied Machine tooling charts to confirm insert and holder selection for the target bore diameter.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with indexable drilling systems. Ensure the machine spindle is fully stopped and the toolholder is clean and free of debris before seating the shank. Verify that through-coolant pressure and flow rate meet Allied Machine recommendations for the T-A Pro Series before running the tool. Follow the machine builder guidelines and applicable shop safety procedures when setting tool stick-out and runout.