Eagle 4 - HWL3 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 HWL3 core barrel has an overall diameter of 95.76mm or 3.77 Inches, with a coring (inside) diameter of 63.63mm or 2.5 Inches. The sturdy barrel and decent sample size makes HWL one of the most popular forms of wireline core extraction.

This bit is part of the Eagle Series. The Eagle 4 is forged with the diamond slightly exposed from the bit matrix, meaning this series of Coring Bit is best suited to tackle very soft to soft rock formations such as Sand, Clay, Chalk, Salt and Soft Limestone.

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.