M12 x 1.0 Metric Taper and Plug Taps: Hand Threading Taps: Amazon.com: Industrial & Scientific
1pc Left Hand Metric Thread Tap Hss Screw Tap Drill Bit M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 Machine Straight Shank Plug Tap - Tap & Die - AliExpress
M14 x 1.25 STI Spark Plug Tap
Xcan 3pcs M2-m12 Metric Tap Hss Machine Screw Tap Drill Bit Tapping Tool Thread Plug Tap Thread Tap Metalworking Hand Tools - Tap & Die - AliExpress
Eazypower SAE Plug Tap, National Special Thread, 3/16-In. x 24 | West True Value
3/4"-18 UNS HSS Plug Tap | DWTST3/4-18P | DrillsandCutters.com
1"-16 UNS HSS Plug Tap | DWTST1-16P | DrillsandCutters.com
Drill America 9/16"-18 UNF High Speed Steel Plug Tap, (Pack of 1): Amazon.com: Industrial & Scientific
Amazon.com: Alfa Tools CSHTS70532 1/4-20 Carbon Steel Hand Tap Set Taper/ Plug/Bottom : Industrial & Scientific