Get the exact tap and matching drill bit for the job in one convenient package. This Century Drill & Tool combo pairs a carbon steel plug tap with the correct-size high speed steel drill bit, so you drill the right hole and cut clean, accurate threads every time.

• 5/16"-24 NF carbon steel plug tap
• Letter I HSS brite drill bit - the correct tap drill size for this thread
• Precision-cut threads, accurately formed for consistent, true threading
• Tap is heat treated and tempered for file-hard cutting edges and longer life
• 135-degree quick-cut drill point is self-centering and resists walking
• Plug tap is designed for hand-cutting applications in a tap wrench
• Tap and drill matched and packaged together for convenience

Tip: Use cutting oil and back the tap off a half turn periodically to clear chips for cleaner threads.