UEW SUBS

Subs are used as connectors to connect drill rods, core barrels, casing, rock bits, water swivels, fishing tools etc. that have different size or type of threads. All female ends are called "Box" and male ends are called "Pin". All subs are manufactured with right hand thread connections unless the purchaser specifies otherwise. The most commonly used subs are shown in the figure. Other subs to meet your need can be manufactured on special orders.