Double Wall Drill Pipes
Double Wall Drill Pipes

Double Wall Drill Pipes are used in drilling of wells with diameter 84 and 93 mm and depth up to 300 m in soils of II-V drillability classes with seams of soils up to VII drillability class in the fulfilment of all necessary prospecting and geochemical operations, in geological mapping and exploration of deposits of solid minerals.

ZBO Drill Industries, Inc.
Drill Rods

Technical characteristics of Drill Rods External diameter of the pipe D, mm Internal diameter of connector d, mm External diameter of connector D1, mm Wall thickness of the pipe t, mm OD of tong recess S, mm Length L1, mm Total … Continued