Irwin tap and drill bit combo pack for creating machine screw threads. Includes a high carbon steel plug tap for general-purpose threading and a high-speed steel (HSS) drill bit sized for the correct tap drill hole. Having the matched set ensures proper thread fit every time.

• Tap size: 12-24 NC
• Drill bit: #16
• High carbon steel plug tap for general-purpose threading
• High-speed steel (HSS) drill bit for fast, precise drilling
• Matched set ensures proper thread fit