Our company can manufacture master bushings and insert bowls sizing from 17-1/2 to 49-1/2inch.
They are cast with high-quality alloy steel and the sizes conform to API Spec 7K Specification for drilling and well servicing equipment.
There are two types, pin drive and square drive.
API standard rotary slips, drill collar slips, casing slips and roller Kelly bushings can be contained in them.