![inch and Metric Tap Drill Size Guide Chart Magnet | UNC | UNF | NPT | NPS | I.S.O. Metric Coarse | I.S.O. Metric Fine | Flexible Magnetic Sheet & inch and Metric Tap Drill Size Guide Chart Magnet | UNC | UNF | NPT | NPS | I.S.O. Metric Coarse | I.S.O. Metric Fine | Flexible Magnetic Sheet &](https://m.media-amazon.com/images/I/71JIy2zvC-L.jpg)
inch and Metric Tap Drill Size Guide Chart Magnet | UNC | UNF | NPT | NPS | I.S.O. Metric Coarse | I.S.O. Metric Fine | Flexible Magnetic Sheet &
![SAE Tap Drill Chart, Metric Tap Drill Chart and Thread Thru Hole Chart Cards. 5.5"x8.5" Water and Tear Resistant Cards. Set of 3 Cards. SAE Tap Drill Chart, Metric Tap Drill Chart and Thread Thru Hole Chart Cards. 5.5"x8.5" Water and Tear Resistant Cards. Set of 3 Cards.](https://m.media-amazon.com/images/I/81xUoaolrfL._AC_UF894,1000_QL80_.jpg)
SAE Tap Drill Chart, Metric Tap Drill Chart and Thread Thru Hole Chart Cards. 5.5"x8.5" Water and Tear Resistant Cards. Set of 3 Cards.
![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)