Irwin 80220 Tap Drill Set 10-24 No. 25 Drill 2 Piece

Product Description

The IRWIN 80220 is a 2-piece tap drill set matched for 10-24 thread tapping applications. The set pairs a 10-24 spiral flute tap with a No. 25 drill bit, covering both the drilling and threading steps needed to produce a clean 10-24 threaded hole. The tap is made from carbon steel with a bright finish and a plug chamfer, which provides a balance of starting ease and thread engagement depth. The drill is manufactured from high speed steel for durability across a range of workpiece materials. This set is a practical bench or field solution for electricians, plumbers, and HVAC techs who regularly cut 10-24 threads in sheet metal, brackets, or light structural components.

The 80220 is suited for maintenance, repair, and installation work where 10-24 fasteners are standard. Common applications include threading conduit brackets, equipment mounting hardware, control panel components, and light-gauge metal fabrication tasks encountered in residential and light commercial trade work. The compact 2-piece format keeps the matched drill and tap together, reducing the chance of using a mismatched drill size before tapping.

Key Features

• Matched set: No. 25 drill paired with a 10-24 tap for correct pilot hole sizing
• Spiral flute tap design helps evacuate chips during through-hole tapping
• Plug chamfer provides a standard starting taper suitable for most through-hole and deep blind-hole applications
• Tap material: carbon steel with bright finish for general-purpose use
• Drill material: high speed steel for extended service life
• Compact 2-piece format keeps drill and tap matched and organized

Compatibility

Designed for use in applications requiring 10-24 UNC threaded holes. The No. 25 drill is the standard recommended pilot drill for 10-24 tapping in common ferrous and non-ferrous materials.

Installation Notes

Installation of tapped fastener holes should be performed by a qualified tradesperson following applicable codes for the work type. Secure the workpiece firmly before drilling to prevent movement. Apply cutting fluid when tapping steel to reduce tap breakage and extend tool life. Back the tap out periodically to clear chips, particularly in blind-hole applications.