The right size bit and tap for a quality 3/8 NPT fitting. Used for a turbo oil drain fitting on NA/NB oil pans. – Flyin' Miata
Drill & Tap Kit - 1/8" NPT Thread
RIDGID E-5112 (35815) 1/8 in. Manual Pipe Tap (NPT)
Tap Drill Bit 1/8" NPT
Pressol » Screw-in taps and screw-in holes with sealant (sealing in the thread)
Amazon.com: GlowShift 1/8-27 NPT Drill & Tap Kit - 1/8" Carbon Steel Tap & R High Speed Steel Drill Bit for EGT Probe Installation to Exhaust Manifold : Automotive
Century Drill & Tool 93201 1/8-27 NPT Tap and 21/64" Drill Combo Pack - Amazon.com
Machine Screws Drill Tap App – Jim's Jump
Drill America 1 in. Carbon Steel NPT Pipe Tap and 1-5/32 in. High Speed Steel Drill Bit Set (2-Piece) POU1NPTW/DRILL - The Home Depot
NPT TAP DRILL SIZE MAGNETIC CHART FOR TAPERED PIPE THREAD | eBay
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 Thread Tap drill Size Chart | NPT thread Taper angle | national pipe taper thread - YouTube
1/8" HSS Black & Gold KFD Split Point Jobber Length Drill Bit, Killer Force Drill Bit | KFD1/8 | DrillsandCutters.com
Stupid question time, drill sizes for pipe taps.| Grassroots Motorsports forum
1/8" Carbon Steel NPT Tap and "R" HSS Drill Bit Kit, Qualtech | POU1/8NPTW/ DRILL | DrillsandCutters.com
Drill America 3/8 in. Carbon Steel NPT Pipe Tap and 37/64 in. High Speed Steel Drill Bit Set (2-Piece) POU3/8NPTW/DRILL - The Home Depot
CENTURY DRILL AND TOOL Tap National Pipe Thread 1/8-27 Npt Drill Bit 21/64" Combo Pack (93201) | Zoro
Tap National Pipe Thread 1/8-27 NPT Drill Bit 21/64″ Combo Pack – Century Drill & Tool
1/8" Carbon Steel NPT Tap and "R" HSS Drill Bit Kit, Qualtech | POU1/8NPTW/ DRILL | DrillsandCutters.com
1/8" Carbon Steel NPT Tap and "R" High Speed Steel Drill Bit - Walmart.com
Tap Drill Charts | Drill, Drill bit sizes, Drill guide
Century Drill & Tool Tap NPT 1/8-27 Drill Bit 21/64" - 93201 | Blain's Farm & Fleet
1/8" Carbon Steel NPT Tap and "R" HSS Drill Bit Kit, Qualtech | POU1/8NPTW/ DRILL | DrillsandCutters.com
National Standard Taper Pipe Threads Size NPT Chart
