Eagle 9 - NWL3 Core Drill Bit - Set to Liner

Wireline core drilling systems are often used for medium to very-deep boreholes, which provides the most efficient core sample extraction from the rock mass, without pulling the entire drill string. The rock sample is removed from the bottom of the hole in the inner tube assembly by an overshot on a wireline cable, saving time and money doing so.

The NWL3 core barrel has an overall diameter of 75.7mm or 3 Inches, with a coring (inside) diameter of 45mm or 1.8 Inches. The sturdy barrel and decent sample size makes NWL3 a great choice of wireline core extraction.

This bit is part of the Eagle Series. The Eagle 9 is forged with the diamond very exposed from the bit matrix, meaning this series of Coring Bit is built for medium hard to hard formations, making it more effective for drilling through rocks such as hard limestone, dolomite, andesite and magnetite.

Drill-Its Eagle set of drill bits are our range of Set To Liner Wireline models, meaning the casing string that does not extend to the top of the wellbore, but instead is anchored or suspended from inside the bottom of the previous casing string. There is no difference between the casing joints themselves.