Eagle Cutting Tool DT-3750-16-I 3/8-16 Nc Hss Combo Tap Drill

Product Description

The EAGLE CUTTING TOOL DT-3750-16-I is a combination tap drill designed for cutting 3/8-16 NC (National Coarse) threaded holes in a single operation. Made from high-speed steel (HSS), it combines the drilling and tapping steps into one tool, reducing setup time on the job. This type of tooling is used by machinists, pipefitters, and maintenance technicians who need to produce clean, accurately threaded holes in steel, aluminum, and similar materials without switching between a separate drill bit and tap. The HSS construction provides the hardness and heat resistance needed for production and service work.

The DT-3750-16-I is suited for hand-tap and machine-tap applications in light to medium-duty metalworking and field maintenance operations. It is commonly used when tapping into brackets, flanges, enclosures, and structural components where 3/8-16 NC fasteners are specified. The combination format is particularly useful in repair and retrofit scenarios where drilling and tapping must be completed quickly in place or at a workbench.

Key Features

• Combination drill-and-tap design completes the 3/8-16 NC thread in one pass
• High-speed steel (HSS) construction for durability across metal materials
• National Coarse (NC) thread form — one of the most common fastener standards in North American trade work
• Minimum order quantity of 1, available as a single unit

Compatibility

Designed as a standard combination tap drill for use in any hand or machine tapping operation requiring a 3/8-16 NC threaded hole.

Installation Notes

This tool is typically used by machinists, pipefitters, and maintenance technicians working with drill presses, hand drills, or tapping machines. Secure the workpiece fully before drilling to prevent movement. Use appropriate cutting fluid for the base material to extend tool life and produce a cleaner thread. Follow applicable shop safety practices and wear eye protection during all drilling and tapping operations.

Technical Specifications

• Thread Size: 3/8-16 NC
• Thread Form: National Coarse (NC)
• Material: High-Speed Steel (HSS)
• Weight: 0.715 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: DT-3750-16-I