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The DEWALT ACCESSORIES DWA1404 is a 10-24 NC drill and tap set designed for creating and repairing internal threads in metal applications. This 2-piece set includes a tap and a matching drill bit, both constructed from high-carbon steel for accurate threading and long service life. A patented core design helps reduce breakage during tapping operations, making it a reliable choice for demanding job-site use. Licensed tradespeople and skilled DIYers working with metal fastener applications will find this set suitable for production and repair work alike.
This set is intended for use in metal threading applications where 10-24 NC thread specifications are required. The 10-24 NC thread standard is a coarse-thread designation commonly encountered in electrical, HVAC, and light mechanical assembly work. The included drill bit is sized to match the tap, allowing the user to drill the pilot hole and cut the thread without switching to separate toolsets. It is packaged as a 2-piece unit sold individually.
Designed as an OEM-style replacement or supplemental tooling for applications requiring 10-24 NC internal threads in metal substrates.
Tap and drill set installation is typically performed by electricians, HVAC technicians, plumbers, or other tradespeople who require threaded fastener points in metal enclosures or components. Before tapping, ensure the pilot hole is drilled to the correct size using the included drill bit. Use appropriate cutting fluid when tapping metal to extend tool life and reduce friction. Follow applicable safety practices for rotating hand tools, and secure the workpiece firmly before drilling or tapping.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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