Dewalt DWA1422 Tap Drill Set M8 X 1.25 2 Piece

Product Description

The DEWALT DWA1422 is a 2-piece tap drill set matched specifically for M8 x 1.25 thread cutting applications. The set includes a standard hand tap and a matching H-size drill bit, giving technicians and tradespeople both tools needed to prepare and cut an M8 x 1.25 thread in a single kit. The tap is carbon steel with a bright finish and a taper chamfer, which eases thread entry and reduces the force required to start the cut. The drill bit is high speed steel (HSS) with a 135-degree point angle for accurate centering on metal surfaces. This set suits professionals who need a reliable, matched pair for field repair and fabrication tasks.

This tap drill set is designed for standard hand tapping operations in metal, making it a practical choice for HVAC technicians, electricians, plumbers, and general tradespeople who thread holes in enclosures, brackets, strut, or equipment frames. The taper chamfer on the tap allows gradual thread engagement, which is especially useful when threading by hand in tight or awkward access points common in mechanical and electrical installations. The 2-piece format keeps the matched drill and tap together for quick deployment on the job.

Key Features

• Matched set for M8 x 1.25 threading: includes one tap and one H-size HSS drill bit
• Carbon steel tap with bright finish for corrosion resistance during storage and use
• Taper chamfer provides gradual thread entry and reduces start-up torque
• High speed steel drill bit with 135-degree point angle for accurate center positioning
• Standard hand tap type — compatible with manual tap handles and tap wrenches
• Compact 2-piece kit keeps matched tools together for field use

Compatibility

Designed for use with standard hand tap handles and tap wrenches sized for M8 taps. Intended for cutting M8 x 1.25 threads in metal substrates using the included H-size drill bit to prepare the pilot hole.

Installation Notes

Installation should be performed by a qualified tradesperson familiar with manual thread cutting procedures. Always secure the workpiece before drilling and tapping, and use an appropriate cutting fluid to extend tool life and improve thread quality in metal. Follow the drill-then-tap sequence: use the H-size bit to drill the pilot hole before engaging the tap. Inspect threads after cutting to confirm full engagement depth before installing fasteners.