... Q series Core Barrel are widely used for wireline core drilling Wireline Q series Core Barrel Wireline drilling is the special method of removing the core ... 1.5m and 3.0m length core barrels are avaiable. Wireline series Core Barrel available:Q series Core Barresls: AQ, BQ, NQ, ... HQ, PQ, NQ3, HQ3T series Core Barrels: T2-56 ...