... "WEILI"SERIES ELECTRIC THREADING MACHINES. N501.Machining range :1/2”---2’’2.Voltage :110V 220V 380V or other3. ... 115kg6.thread gauge:BSPT7.dies:1/2''-3/4'',1''-2'',2 1/2''-3''N1001.machining range :1/2’’---4’’2.voltage ... 145kg6.thread gauge:BSPT7.dies:1/2''-3/4'',1''-2'',2 1/2''-4''N1501.machining range :1/2’’---6’’2.voltage ... :M8,M10,M12,M14,M16,M18,M20,M24,1/2''-3/4'',1''-2'' pipe threading machine