Vikrant special machines suppliesoffers ppt-series pipe threading machines. These threading machines are best suited are ideal for site work for threading ¼ 2 and ¼ 4 pipes, nipples and bolts. These machines operate "job rotatingdie head stationary principle. Following are some of the technical features of these threading machines which include:the tangential die head with chaser holders and slitting and chamfering devices are mounted on cylindrical guideways;. Pipes are clamped with 44 jaw self-centering chucks mounted on main spindle;. The machine has 2 speeds.