2mm -- Tap - (fits 2mm x 40 precision thread) | KnifeKits.com
Amazon.com: Kings County Tools Tap and Die Set | 1 Inch Size | Cuts Male & Female Wooden Threads | Two-Handed Thread Box | Bottoming Tap | Long-Lasting Steel Cutters with Aluminum
1"-20 UNF Tap and Die HSS Thread Tap with Round Threading Die Right Hand for sale online | eBay
Drill America 1/2 in. -14 Carbon Steel NPT Pipe Tap DWTPT1/2 - The Home Depot
Metric Thread Tap - 18mm -1.50mm
Metric Screw Thread Plug | Machine Tap Long | Long Metric Plug | Threading Tools - Machine - Aliexpress
Tap & Die Kit - Standard/Metric - 33 Piece - (w/case) | KnifeKits.com