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DORMER - Combination Drill Tap: 1/4-18, 4 Flutes, High Speed Steel - 65677833 - MSC Industrial Supply
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Amazon.com: 1/4-18 NPT HSS Taper Pipe Tap, High-Quality High-Speed Steel 6542, Used For Conventional Machine Tapping Or CNC Tapping, Can Tap Steel And Stainless Steel. : Industrial & Scientific
![Century Drill & Tool 1/4-18 National Pipe Thread Tap Drill Bit 7/16 In. Combo Pack | Hills Flat Lumber Century Drill & Tool 1/4-18 National Pipe Thread Tap Drill Bit 7/16 In. Combo Pack | Hills Flat Lumber](https://storage.googleapis.com/products.ezadtv.com/2314/469827.jpeg)
Century Drill & Tool 1/4-18 National Pipe Thread Tap Drill Bit 7/16 In. Combo Pack | Hills Flat Lumber
![Drill America 1/4 in. Carbon Steel NPT Pipe Tap and 7/16 in. High Speed Steel Drill Bit Set (2-Piece) POU1/4NPTW/DRILL - The Home Depot Drill America 1/4 in. Carbon Steel NPT Pipe Tap and 7/16 in. High Speed Steel Drill Bit Set (2-Piece) POU1/4NPTW/DRILL - The Home Depot](https://images.thdstatic.com/productImages/f31f0959-cbe0-43aa-a085-6ae489d61255/svn/drill-america-specialty-drill-bits-pou1-4nptw-drill-1f_600.jpg)
Drill America 1/4 in. Carbon Steel NPT Pipe Tap and 7/16 in. High Speed Steel Drill Bit Set (2-Piece) POU1/4NPTW/DRILL - The Home Depot
![NPT & NPTF NPS & NPSF Pipe Tap Size Pitch (TPI) Drill Size* (inch) Pitch (TPI) Drill Size (inch) 1/16 27 0.242 (C) - - 1 NPT & NPTF NPS & NPSF Pipe Tap Size Pitch (TPI) Drill Size* (inch) Pitch (TPI) Drill Size (inch) 1/16 27 0.242 (C) - - 1](https://alliedmachine.com/AlliedMachine/media/AlliedMasterPageImages/OnlineTools/Tap%20Drill%20Charts/Thumbnails/LPI_National-Pipe-Threads.jpg)
NPT & NPTF NPS & NPSF Pipe Tap Size Pitch (TPI) Drill Size* (inch) Pitch (TPI) Drill Size (inch) 1/16 27 0.242 (C) - - 1
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OSG - 1/4-18 NPT, 5 Flutes, Bright Finish, High Speed Steel, Interrupted Thread Pipe Tap - 75046300 - MSC Industrial Supply
![Amazon.com: 1/4-18 NPT HSS Taper Pipe Tap, High-Quality High-Speed Steel 6542, Used For Conventional Machine Tapping Or CNC Tapping, Can Tap Steel And Stainless Steel. : Industrial & Scientific Amazon.com: 1/4-18 NPT HSS Taper Pipe Tap, High-Quality High-Speed Steel 6542, Used For Conventional Machine Tapping Or CNC Tapping, Can Tap Steel And Stainless Steel. : Industrial & Scientific](https://m.media-amazon.com/images/I/51eUb1BHrJL.jpg)