Amazon
Tap size - 1/4" x 20 UNC. Threads Per Inch (TPI) - 20. Type - Tap set of 3 Völkel straight flute tap set of 3 for thread cutting by hand Manufactured from High Speed Steel (HSS) Precision made with ground threads and supplied in bright finish Square Size - 5.0mm
Tap size - 1/4" x 20 UNC. Threads Per Inch (TPI) - 20. Type - Tap set of 3 Völkel straight flute tap set of 3 for thread cutting by hand Manufactured from High Speed Steel (HSS) Precision made with ground threads and supplied in bright finish Square Size - 5.0mm