Regal Cutting Tools 007540AS Combo Drill Tap 1/2-13 Hss

Product Description

The REGAL CUTTING TOOLS 007540AS is a combination drill tap designed to drill and tap a hole in a single operation. It cuts a 1/2-13 UNC thread with an H3 thread limit and a right-hand thread direction. The drill point diameter is 0.435 inches, the thread length is 1.375 inches, and the overall length is 4.0625 inches. Built from high speed steel with a bright finish, this tool is suited for machinists, maintenance technicians, and fabricators working in metals and similar materials where a two-in-one operation saves time and reduces tool changes.

This combination drill tap is used in production and maintenance machining environments where through-holes and tapped threads are needed in a single pass. It is appropriate for applications in mild steel, aluminum, brass, and similar machinable materials. The 2-flute geometry and right-hand flute direction support chip evacuation during drilling and tapping. It is commonly used in manual drill presses, CNC machining centers, and hand-held drilling equipment where torque control is available.

Key Features

• Drills and taps in a single operation, reducing cycle time and tool changes
• 1/2-13 UNC thread form with H3 thread limit for controlled tolerance fit
• High speed steel construction for durability across general-purpose machining
• Bright finish with 0.435-inch drill point diameter and 0.367-inch shank diameter
• Right-hand flute and thread direction for standard clockwise operation
• 2-flute design supports chip clearance during the combined drilling and tapping pass

Compatibility

Designed as a direct-fit replacement for combination drill tap applications requiring a 1/2-13 UNC thread, H3 thread limit, and a 0.4350-inch drill diameter in standard drill press or CNC setups.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician familiar with tapping operations. Secure the workpiece fully before beginning the operation and use a cutting fluid appropriate for the workpiece material to extend tool life and improve thread quality. Apply consistent, controlled torque to avoid tap breakage, particularly near the bottom of blind holes. Always power down and de-energize any machine tool before changing or inspecting tooling.