pipe threader 1. mechanical transmission reverse (gears) 2. threader speed:18-28RPM, 51RPM reverse 3.CSA (cus) certified Detailed information for portable pipe ... Universal 115V or 220V, 50-60Hz Switch: Heavy-duty paddle-type switch. Gear Housing: Aluminum Speed: 18-28 RPM for ... /4", 1", 1 1/4", 1 1/2", 2"(Type 11R) for threadingWeight: 8KGS, Power Drive onlyMechanical transmission reverse (3 ...