Value Collection DT22HEX-3/8-16 Combination Drill Tap 3/8-16

Product Description

The VALUE COLLECTION DT22HEX-3/8-16 is a combination drill tap that drills and taps a 3/8-16 thread in a single operation. Machined from high-molybdenum high-speed steel, this tool delivers the hardness and heat resistance required for production tapping in steel, cast iron, and similar ferrous materials. The 135-degree split point promotes accurate starting without a center punch. A gold finish aids lubricity and provides a basic level of wear resistance. With a 5/16 inch drill diameter and 3-1/2 inch overall length, it fits standard drill chucks and tap holders used in machine shop and maintenance work.

This combination drill tap is suited for metalworking applications where a separate drilling and tapping step is impractical or inefficient. Typical uses include through-hole and blind-hole tapping in steel fixtures, frames, brackets, and equipment housings. It is commonly used by machinists, maintenance technicians, and field service professionals who need to create tapped holes quickly with a single tool pass in a drill press, CNC machine, or hand-held power drill.

Key Features

• Combination drill-and-tap design completes a threaded hole in one tool pass
• High-molybdenum high-speed steel construction for heat resistance and extended tool life
• 135-degree split drill point for self-starting accuracy without a center punch
• Gold coating for added lubricity and surface wear resistance
• 2-flute geometry promotes chip evacuation in ferrous and similar materials
• 1-1/16 inch thread length accommodates standard fastener engagement depths

Compatibility

Designed for use with standard 3/8-16 UNC thread applications in metalworking operations. Fits drill chucks and tap holders accepting a 5/16 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician familiar with cutting tool operation. Secure the workpiece firmly before use and apply cutting fluid appropriate for the workpiece material to extend tool life and improve thread quality. Use the lowest practical spindle speed to prevent tool breakage, particularly in harder materials. Inspect the tool for chipping or wear before each use and replace if the cutting edges are damaged.