2pcs HSS unified thread tap and die set UN UNC UNF 11/16 11/16 12 11/16 18 Fine screw Round dies taps UNEF UNS 11/16 20 11/16 24|Tap & Die| - AliExpress
1Pc 5/8 11 12 14 16 18 20 24 27 28 32 36 40 UNC UN UNS UNF UNEF HSS Right Hand Tap TPI Threading Tools Mold Machining 5/8"|Tap & Die| - AliExpress
OSG Spiral Point Tap, Thread Size #0-80, UNF, Overall Length 1 11/16 in, High Speed Steel - 4HKN9|1200001 - Grainger
Amazon.com: HSS 11/16-18 UNS Tap and 11/16-18 UNF Die Right Hand : Industrial & Scientific
Amazon.com: HSS 11/16-18 UNS Tap and 11/16-18 UNF Die Right Hand : Industrial & Scientific
11/16" x 16 TPI UNF Hand Tap Set Contains Taper Second Plug
11/16-20 UN tap-11/16″-20 UN thread tap-HSS bottom lead tap | gaugestools