STRAIGHT FLUTE PARALLEL PIPE TAPS (PF) PFHMunit (mm) CODE NO. THREADS Chamfer Lead Thread Length Overall Length Shank Dia Length of Square Square Number of Flute PT(G) L1 L2 L Φd L3 L4 F PFHM 1828 G 1/8 – 28 2.5P 19 65 8 9 6 4 PFHM 1419 G 1/4 – 19 2.5P 28 72 11 12 9 4 PFHM 3819 G 3/8 – 19 2.5P 28 75 14 14 11 4 PFHM 1214 G 1/2 – 14 2.5P 35 90 18 17 14 4 CUTTING DATA – TAP Material Cast iron FC Strong cast iron FCD East · Bronze CU · PB Aluminum AL HAND SPIRAL PT.PF HAND SPIRAL PT.PF HAND SPIRAL PT.PF HAND SPIRAL PT.PF SPEED (m/min) 10 ~ 20 10 ~ 20 10 ~ 20 10 ~ 20 10 ~ 20 10 ~ 20 10 ~ 20 10 ~ 20 10 ~ 20 10 ~ 20 10 ~ 20 10 ~ 20