Regal Cutting Tools 007528AS Combo Drill Tap 5/16-18 Hss

Product Description

The REGAL CUTTING TOOLS 007528AS is a combination drill tap designed to drill and tap a threaded hole in a single operation. It carries a 5/16-18 UNC thread form with an H3 thread limit and produces right-hand threads. The drill diameter is 0.266 inches with a shank diameter of 0.318 inches and an overall length of 2-27/32 inches. The tool is manufactured from high speed steel with a bright finish and features two right-hand flutes. Machinists, maintenance technicians, and fabricators use combination drill taps to reduce setup time and eliminate a separate drilling step before tapping.

The 007528AS is suited for applications where a standard 5/16-18 UNC threaded hole is required in one pass. It is commonly used in production and repair work on steel, aluminum, and similar workpiece materials where a right-hand thread is the standard. The 15/16-inch thread length accommodates typical fastener engagement depths found in general industrial and mechanical assembly work. The bright finish makes it a general-purpose option where no specialized coating is required.

Key Features

• Combination drill and tap in one tool - eliminates a separate drilling operation
• 5/16-18 UNC thread form with H3 thread limit for controlled tolerance
• 0.266-inch drill diameter with 15/16-inch thread length
• High speed steel construction for durability across common workpiece materials
• Two right-hand flutes with right-hand thread direction
• Bright finish for general-purpose use without coating-specific requirements

Compatibility

Designed as a standard 5/16-18 UNC combination drill tap suitable for use in any application requiring that thread size and an H3 thread limit in a single-step operation.

Installation Notes

This tool is installed in a drill press, CNC machine, or tapping head capable of holding a 0.318-inch shank. Secure the workpiece firmly before operation and use appropriate cutting fluid to extend tool life and improve thread quality. Do not reverse the tool under power unless the machine setup is designed for it. Follow shop safety practices and applicable OSHA guidelines when operating rotary cutting tools.