Drilling stabilizer that WZ type integral blade stabilizer  is made from AISI 4145H alloy steel, implementation of API specification, threads can be cold rolled, copper-plating or phosphating.

WZ Type Integral Blade Stabilizer coefficient determined fairly simple, just make sure about that axis, then the calculation to determine the direction of the axis length and turning radius, slenderness ratio to get along, and then look-up table according to the slenderness ratio overall stability factor!