Janki Oil Tools umblical bushings are robust and reliable equipment specifically designed to be used while oil well testing. It is typically constructed with two holes of 90mm on either side of the face to pass the umbilical hose and a hole in the middle to pass the tubular of upto 9-5/8". It is suitable for pin drive master bushing 37-1/2". They are made from high grade of alloy steel duly harden and tempered with a controlled hardness and duly magnetic particle inspected.