Overburden Drilling HWT Wireline Casing Advancer soil sampling overburden coring Wireline Casing Advancer HWT Wireline Casing Advancer for casing advancer soil sampling and overburden coring Functions: 1. Roschen provides a full line of wireline casing advancers for soil sampling and overburden coring in conjunction with casing. These can also be used for casing through difficult overburden or formations. 2. Provides a positive latch for a one-step method of drilling through