Value Collection 00382218 Combo Drill Tap 4-40 Hss

Product Description

The VALUE COLLECTION 00382218 is a combination drill tap designed to drill and tap a hole in a single operation, eliminating the need for a separate drill bit and tap. Sized for 4-40 UNC threads with an H2 thread limit, this tool is suited for light-duty threading applications in metal fabrication, machine assembly, and maintenance work. The cutting portion is ground from high-speed steel (HSS), providing the hardness and wear resistance needed for threading steel, aluminum, and similar materials. With a 0.091 inch drill diameter and 3/8 inch thread length, it produces clean, accurate 4-40 threads in thin-to-moderate stock.

This combination drill tap is used in manufacturing, assembly, and repair environments where 4-40 UNC threaded fasteners are required. It is well suited for working with sheet metal, enclosures, circuit board standoffs, and other light mechanical assemblies. The 1-7/8 inch overall length fits standard drill press chucks and hand drill drivers. Machinists, tool and die workers, and general maintenance technicians commonly use this tool for production and repair threading tasks.

Key Features

• Drills and taps in a single pass, reducing setup time and tooling changes
• 4-40 UNC thread form with H2 thread limit for consistent fit with standard 4-40 fasteners
• High-speed steel construction for durability across steel, aluminum, and similar materials
• 0.091 inch drill diameter matched to the 4-40 thread specification
• 3/8 inch thread length suitable for thin stock and light fastening applications
• 1-7/8 inch overall length compatible with standard chuck sizes

Compatibility

Designed as a direct-use combination drill tap for applications requiring 4-40 UNC threaded holes in metallic or similar workpieces. Fits standard drill press and hand drill chucks sized for the shank diameter.

Installation Notes

Combination drill taps are installed by machinists or maintenance technicians using a drill press, CNC machine, or hand drill with appropriate speed control. Use cutting fluid to reduce heat buildup and extend tool life, particularly in steel. Secure the workpiece firmly before drilling to prevent movement. Do not exceed recommended RPM for the material being tapped, as excessive speed can cause tool breakage or thread damage.