IRWIN TAP AND DRILL BIT SET - 5/16"-18 NCIrwin 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: 5/16"-18 NC
- Drill bit: Letter F (17/64")
- 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