Bit subs, reducer subs, straight OD subs we have a wide range of subs around the shop. We can also custom make them to meet your specific needs weather you are increasing or decreasing to accommodate a drill bit or shock absorber we have the material to get you exactly what you need.

Definition of a sub;

A short, threaded piece of pipe used to adapt parts of the drilling string that cannot otherwise be screwed together because of differences in thread size or design. A sub (i.e., a substitute) may also perform a special function

Subs and Adapters

Bit subs, reducer subs, straight OD subs we have a wide range of subs around the shop. We can also custom make them to meet your specific needs weather you are increasing or decreasing to accommodate a drill bit or shock absorber we have the material to get you exactly what you need.