Value Collection DT22HEX-1/2-13 Combination Drill Tap

Product Description

The VALUE COLLECTION DT22HEX-1/2-13 is a combination drill tap that drills a pilot hole and cuts 1/2-13 UNC threads in a single pass. Made from high-molybdenum high-speed steel with a gold finish, it handles the full drilling and tapping operation without a tool change. The 27/64-inch drill section has a 135-degree split point for fast penetration and reduced walking on entry. With a 2-flute design and 4-inch overall length, this tool is suited for production threading operations where cycle time and tool count matter. Machinists and maintenance technicians use it for threading steel, cast iron, and similar ferrous materials in standard CNC and manual machine setups.

This combination drill tap is used in metalworking, fabrication shops, and maintenance environments where 1/2-13 UNC threaded holes are required. The single-pass design reduces setup time compared to running a separate drill and tap sequence. It is appropriate for through-hole and shallow blind-hole applications in ferrous materials where chip evacuation allows the 2-flute geometry to perform reliably. Typical applications include structural fabrication, machine repair, and production runs requiring consistent thread quality in 1/2-13 UNC.

Key Features

• Drills and taps 1/2-13 UNC threads in a single operation, eliminating a tool-change step
• High-molybdenum high-speed steel construction provides wear resistance in ferrous materials
• 135-degree split point reduces entry force and minimizes drill walking
• Gold finish indicates surface treatment that aids in chip flow and tool identification
• 27/64-inch drill diameter is the correct tap drill size for 1/2-13 UNC threads
• 2-flute geometry supports chip evacuation in through-hole drilling and tapping

Compatibility

Designed for use in standard drill press, CNC machining center, and manual milling machine setups that accept straight-shank combination drill taps. Intended for 1/2-13 UNC thread applications in ferrous and similar machinable materials.

Installation Notes

A licensed machinist or qualified maintenance technician should install this tool in a properly sized chuck or collet that matches the shank diameter before operation. Ensure the machine spindle is at an appropriate speed for the material and tool diameter before engaging the cut. Use cutting fluid compatible with the workpiece material to extend tool life and improve thread finish. Inspect the tool for wear or chipping before each use and replace if the cutting edges show damage.