Allied Machine HTA0A03-075F Indexable Spade Drill 1/2 in

Product Description

The ALLIED MACHINE AND ENGINEERING HTA0A03-075F is an indexable spade drill designed for high-performance hole-making operations in a wide range of workpiece materials. It accepts interchangeable spade drill inserts and delivers consistent, repeatable drilling in production and job-shop environments. The body is constructed from steel and features a straight flute design with through-coolant capability via axial concentric entry, which supports chip evacuation and heat management during deep drilling. With a 1/2 inch minimum drill diameter and a maximum drill diameter of 0.6950 inches, this tool covers a practical range of bore sizes. The flanged, flatted shank measures 3/4 inch in diameter and seats securely in compatible toolholders.

This spade drill body is suited for CNC machining centers, vertical mills, and drill presses where indexable tooling is preferred over solid carbide for cost efficiency and flexibility. The T-A Pro series is engineered for standard-length drilling applications with a 3xD depth-to-diameter ratio. It is appropriate for use on universal workpiece materials, including ferrous metals, stainless alloys, cast iron, nonferrous metals, superalloys, and hardened materials as indicated by the P, M, K, N, S, and H material group codes. Machinists and CNC operators in metalworking, aerospace, automotive, and general manufacturing will find this tool applicable across a broad range of production drilling tasks.

Key Features

• Through-coolant delivery via axial concentric entry supports chip flushing and thermal control at the cutting zone
• Straight flute geometry with standard-length body suits general-purpose production drilling at 3xD depth ratio
• Flatted, flanged shank provides positive drive engagement and resists rotation in the holder
• Indexable insert design reduces tooling cost by allowing blade replacement without replacing the full drill body
• Compatible with universal workpiece material groups: P, M, K, N, S, and H
• Steel body construction balances rigidity and weight for use in high-repetition production environments

Compatibility

Designed for use with compatible T-A Pro series indexable spade drill inserts from Allied Machine and Engineering. Accepts blades within the minimum drill diameter of 1/2 inch and maximum drill diameter of 0.6950 inches. Fits toolholders with a 3/4 inch shank bore designed for flatted, flanged shank tooling.

Installation Notes

Installation and setup should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the tool is de-energized before mounting or removing the drill body. Confirm the toolholder bore matches the 3/4 inch flatted shank and that the flange seats properly to prevent axial pullout. Connect through-coolant supply lines before operation and verify coolant flow through the body prior to cutting.