TAPS OF MSZ TYPE

PURPOSE: the capture and subsequent extraction of the drill pipe by screwing into the thread of the castle.

Taps used for fishing of drill stem left in the well, if breakage occurred in the thickened part of the tube, in the castle or the clutch. The tap consists of a coupling connection threads, body, and a catch-all thread on bottom end. The fishing thread is in the form of a truncated cone and has a vertical groove for discharging cut chips.