Hanlinksy Under-reaming Systems are the most economical solutions for casing drillings in normal ground conditions. They are widely used for water wells, geothermal wells, shallow micro-piling and mini-grouting works. We offer a wide range of models for the customers, which are suitable for 3" to 8" DTH hammers and 38mm to 51mm Tophammer threads.
► Ingenious structure, high quality, high durability and easy operation.
► Retrievable design, reliable reaming wing, stable performance and cost effectiveness.
► Suitable for all kinds of rock formations.